CA1089645A - Apparatus for injecting fungicides and the like into trees - Google Patents
Apparatus for injecting fungicides and the like into treesInfo
- Publication number
- CA1089645A CA1089645A CA277,719A CA277719A CA1089645A CA 1089645 A CA1089645 A CA 1089645A CA 277719 A CA277719 A CA 277719A CA 1089645 A CA1089645 A CA 1089645A
- Authority
- CA
- Canada
- Prior art keywords
- stem
- bushing
- tree
- aperture
- trunk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
Abstract
ABSTRACT OF THE DISCLOSURE
Normal plastic injectors often fall out of the tree trunk so that fluid is wasted and those that are screwed in with resilient sealing bushings secured to the shank, wear rapidly because the bushing tears as it is turned into seal-ing contact with the rough bark of the tree. One embodiment of the invention uses a bushing with a gland connection to the stem so that as the stem is turned, the bushing remains station-ary and does not tear. Another embodiment may be hammered in so that once again the bushing does not turn. In both embodi-ments, an aperture is drilled into the tree having a larger diameter than the stem thus acting as a fluid reservoir. The stem is drilled in an area which engages through the cambium layer of the tree when installed.
Normal plastic injectors often fall out of the tree trunk so that fluid is wasted and those that are screwed in with resilient sealing bushings secured to the shank, wear rapidly because the bushing tears as it is turned into seal-ing contact with the rough bark of the tree. One embodiment of the invention uses a bushing with a gland connection to the stem so that as the stem is turned, the bushing remains station-ary and does not tear. Another embodiment may be hammered in so that once again the bushing does not turn. In both embodi-ments, an aperture is drilled into the tree having a larger diameter than the stem thus acting as a fluid reservoir. The stem is drilled in an area which engages through the cambium layer of the tree when installed.
Description
BACKGROUND OF THE INVENTION
This invention relates to apparatus for the treat-ment of trees against fungus diseases, particularly the Dutch Elm disease fungus.
Dutch Elm disease (Ceratocystis_ulmi) is prevalent in North America at this time and many attempts have been made to either kill or protect Elm trees against the attacks of this fungus.
One method is to inject certain fungicides through the root ends which have been cut off and such a method is de-scribed in Canadian patent no: 962,588.
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Another method utilizes a pressure vessel contaln-lng the funglcide in solution and connected by tubing to plastic injectors which are inserted into holes drilled around the periphery of the trunk just above the ground.
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Both methods suffer from disadvantages, the first method requiring excavation of the roots and severing of same and the second method having no means to hold the plastic `~ -plugs in position with the exception of the frictional con-tact.
' -:
As the injection of the fungicide is under pressure, these plugs often fall out so that the solution is wasted.
SUMMARY OF THE INVENTION
This invention overcomes these disadvantages by pro-viding an injector which can be inserted within a prebored reservoir drilling within the tree trunk and which will hold in sealing relationship whereupon it can be connected to a conventional pressure injection apparatus.
- ~
` One aspect of the invention is to provide an injector for fungicides and the like adapted to be used in a tree trunk having a reservoir aperture fromed through the bark, the cam-bium layer and part way into the trunk of the tree; comprising in ccmcinaticn a hollcw elcngated tapered ~tem terminating at
This invention relates to apparatus for the treat-ment of trees against fungus diseases, particularly the Dutch Elm disease fungus.
Dutch Elm disease (Ceratocystis_ulmi) is prevalent in North America at this time and many attempts have been made to either kill or protect Elm trees against the attacks of this fungus.
One method is to inject certain fungicides through the root ends which have been cut off and such a method is de-scribed in Canadian patent no: 962,588.
. .. - , : . . - , . . . .................... : . . .... . .. . . .
.: ., . : . ., .: , . : : : , . . : . : . . : :, . . .: : . :
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Another method utilizes a pressure vessel contaln-lng the funglcide in solution and connected by tubing to plastic injectors which are inserted into holes drilled around the periphery of the trunk just above the ground.
'~', :
Both methods suffer from disadvantages, the first method requiring excavation of the roots and severing of same and the second method having no means to hold the plastic `~ -plugs in position with the exception of the frictional con-tact.
' -:
As the injection of the fungicide is under pressure, these plugs often fall out so that the solution is wasted.
SUMMARY OF THE INVENTION
This invention overcomes these disadvantages by pro-viding an injector which can be inserted within a prebored reservoir drilling within the tree trunk and which will hold in sealing relationship whereupon it can be connected to a conventional pressure injection apparatus.
- ~
` One aspect of the invention is to provide an injector for fungicides and the like adapted to be used in a tree trunk having a reservoir aperture fromed through the bark, the cam-bium layer and part way into the trunk of the tree; comprising in ccmcinaticn a hollcw elcngated tapered ~tem terminating at
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one end thereof in a trunk piercing point, liquid fungicide ejection apertures formed through the wall of said stem and com-municating with the interior thereof, a resilient sealing bush-ing surrounding said stem towards the other end of said stem whereby said apertures are between said bushing and said one end, and means to engage said stem through the reservoir aperture and into the trunk at the base of said reservoir aperture, whereby said sealing bushing sealably engages with the outer surface of the bark of said tree surrounding said reservoir aperture, said resilient sealing bushing including means whereby said stem is rotatable relative to said bushing, said last mentioned means comprising a gland sleeve through said bushing between said bush-ing and said stem, and means to seal said bushing relative to said stem when installed.
Another object of the invention is to provide a device of the character herewithin described which includes a sealing bushing which can be engaged without same rotating relative to ~-the injector stem so that it does not tear or wear against the bark of the tree surrounding the reservoir aperture. -A still further object of the invention is to provide a device of the character herewithin described which is simple . :
in construction, economical in manufacture and otherwise well suited to the purpose for which it is designed. -With the foregoing objects in view, and other such ob-. .
jects and advantages as will become apparent to those skilled in the art to which this invention relates as this specification pro-ceeds, my invention consists essentially in the arrangment and construction of parts all as hereinafter more particu- ;~
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one end thereof in a trunk piercing point, liquid fungicide ejection apertures formed through the wall of said stem and com-municating with the interior thereof, a resilient sealing bush-ing surrounding said stem towards the other end of said stem whereby said apertures are between said bushing and said one end, and means to engage said stem through the reservoir aperture and into the trunk at the base of said reservoir aperture, whereby said sealing bushing sealably engages with the outer surface of the bark of said tree surrounding said reservoir aperture, said resilient sealing bushing including means whereby said stem is rotatable relative to said bushing, said last mentioned means comprising a gland sleeve through said bushing between said bush-ing and said stem, and means to seal said bushing relative to said stem when installed.
Another object of the invention is to provide a device of the character herewithin described which includes a sealing bushing which can be engaged without same rotating relative to ~-the injector stem so that it does not tear or wear against the bark of the tree surrounding the reservoir aperture. -A still further object of the invention is to provide a device of the character herewithin described which is simple . :
in construction, economical in manufacture and otherwise well suited to the purpose for which it is designed. -With the foregoing objects in view, and other such ob-. .
jects and advantages as will become apparent to those skilled in the art to which this invention relates as this specification pro-ceeds, my invention consists essentially in the arrangment and construction of parts all as hereinafter more particu- ;~
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larly described, reference being had to the accompanying drawings in which:
DESCRIPTION OF THE DRAWINGS
Figure 1 is a cross sectional view of one embodiment of the injector shown engaged within a portion of a tree t.runk.
Figure 2 is an enlarged cross sectional view of the bushing portion of the injector of Figure 1.
Figure 3 is a side elevation of an alternative em-bodiment of the injector on a larger scale than Figures 1 and 2.
Figure 4 is a side elevation of the preferred em- .
bodiment of the injector.
In the drawings like characters of reference indicate corresponding parts in the different figures.
DETAILED DESC~IPTION .
Proceeding therefore to describe the invention in de-tail, reference character 10 illustrates generally, a portion of .
a tree trunk which includes the cork layer 11, the bark layer 12, the cambium layer 13 and the heart portion of the tree trunk 14.
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With this injector, a series of reservoir apertures 15 are drilled into the tree through the bark and cambium layer and part way into the trunk with the injector collective-ly designated 16 being engaged therein as clearly shown in :
Figure 1.
This injector comprises an elongated tapered stem 17 having a wood piercing point 18 formed on one end thereof, said stem being hollow.
Means such as wings 19 are formed adjacent the other :
; 10 end 20 of the stem and assist in rotating same during insertion as will hereinafter be described and the other end 20 is provided ~:
with extending portions 21 to which flexible tubing (not illus-tratedj may be attached to convey fungicide or the like in solu- ..
tion to the stem 17. .~
A plurality of drillings or holes 22 are provided in . ; ~. .
the stem intermediate the ends thereof which are located sub-stantially adjacent the cambium layer 13 when the device is :~ -in position shown in Figure 1. ; :~
.'~
; ~'.',;
A resilient sealing bushing collectively designated ~ ~
20 23 is provided on the stem between the apertures 22 and the other :- ~ ~ :
end 20 and this bushing comprises the resilient rubber cylindri-cal portion 24 and a gland sleeve 25 extending therethrough.
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: ~ ' - ' ' .~.
: . ' ' ' A shouldered washer 26 is secured to the stem against which the bushing rests and a friction washer 27 may be inter- -persed between the bushing and the shoulder 26. The bushing 24 can of course be made from any elastomeric flexible material as desired.
In this embodiment, a helical screw thread flight 28 is formed around the stem between the apertures 22 and the point- -ed end 18 to assist in engaging the device into the trunk as will hereinafter be described.
In operation of this embodiment, the reservoir aperture 15 is first drilled as hereinbefore described whereupon the stem ~:~
is inserted centrally through this aperture so that the pointed end 18 engages the base 29 of the reservoir aperture 15 where-upon the stem is rotated by means of wings 19 to draw the stem : -into the position due to the engagement of the screw thread 28 .
with the trunk 14.
The bushing assembly is grasped by the operator to prevent same rotating as the stem is rotated so that the bushing .
is drawn into sealing relationship with the roughened outer sur- :
face of the bark 11 and gradually compressed into sealing rela-tionship with the bark surrounding the reservoir aperture 15.
: .
, ' .
The source of fungicide under pressure (not illustra-., ... .. ., . , , . ,~ . , .; ~ .
~08~ 5 ted) is connected to the portions 21 so that fungicide in solution flows through the stem and through the apertures 22 and into the reservoir aperture 15. Maintaining the fungi-cide under pressure causes same to feed into vascular system of the tree through the cambium layer 13 rapidly and easily and o~ course it will be appreciated that the device can be left unattended for periods of time until the required quantity has been taken up by the tree.
Figure 3 shows an alternative embodiment which is . -similar to that shown in Figure 1 with the exception that the helica screw thread 28 is not required. An impact head 30 is formed on the other end 20 of the stem so that the device may .
be driven into position rather than screwed into position as hereinbefore described.
"
' ' If desired, annular ribs 31 can be provided adjacent . ;
the point 18 of the stem to retain the device in position and :
the bushing 24 of course does not rotate in this embodiment but is compressed against the outer surface of the bark by an annular shoulder 32 formed adjacent the end 20 of the stem and :;~
below the connecting portion 21.
' Figure 4 shows the preferred embodiment in which the . .
stem 17 is shouldered as at 32 with the other end 20 at the stem : ~
being of a larger diameter than the portion 17. A bushing 33 ...
.... ........ ..
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..
. -. . . . .,: . . , . ~ , :
is in the form of a truncated tapered cone and may be made of fairly hard synthetic plastic material. Apertures 22 are formed in thé stem portion 17 just clear of the bushing 33.
Extending tubular portions 21 provide fluid connec-tion to the interior of the hollow stem portions 20 and 17 so that liquid can exit through the apertures 22. The extremity 30 of the portion 20 may be used as an impact head in order to drive the injector into the tree in a manner similar to that hereinbefore described with the tapered conical bushing 33 ,. .:
sealing the bore 15 once the injector is in place.
Since various modifications can be made in my inven-tion as hereinabove described, and many apparently widely different embodimenks of same made within the spirit and scope ;
of the claims without departing from such spirit and scope, ;~
it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
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. , .
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;
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., - , .
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larly described, reference being had to the accompanying drawings in which:
DESCRIPTION OF THE DRAWINGS
Figure 1 is a cross sectional view of one embodiment of the injector shown engaged within a portion of a tree t.runk.
Figure 2 is an enlarged cross sectional view of the bushing portion of the injector of Figure 1.
Figure 3 is a side elevation of an alternative em-bodiment of the injector on a larger scale than Figures 1 and 2.
Figure 4 is a side elevation of the preferred em- .
bodiment of the injector.
In the drawings like characters of reference indicate corresponding parts in the different figures.
DETAILED DESC~IPTION .
Proceeding therefore to describe the invention in de-tail, reference character 10 illustrates generally, a portion of .
a tree trunk which includes the cork layer 11, the bark layer 12, the cambium layer 13 and the heart portion of the tree trunk 14.
' . .
~ - :- ' ~ ' . ~ ' ' ~8~
With this injector, a series of reservoir apertures 15 are drilled into the tree through the bark and cambium layer and part way into the trunk with the injector collective-ly designated 16 being engaged therein as clearly shown in :
Figure 1.
This injector comprises an elongated tapered stem 17 having a wood piercing point 18 formed on one end thereof, said stem being hollow.
Means such as wings 19 are formed adjacent the other :
; 10 end 20 of the stem and assist in rotating same during insertion as will hereinafter be described and the other end 20 is provided ~:
with extending portions 21 to which flexible tubing (not illus-tratedj may be attached to convey fungicide or the like in solu- ..
tion to the stem 17. .~
A plurality of drillings or holes 22 are provided in . ; ~. .
the stem intermediate the ends thereof which are located sub-stantially adjacent the cambium layer 13 when the device is :~ -in position shown in Figure 1. ; :~
.'~
; ~'.',;
A resilient sealing bushing collectively designated ~ ~
20 23 is provided on the stem between the apertures 22 and the other :- ~ ~ :
end 20 and this bushing comprises the resilient rubber cylindri-cal portion 24 and a gland sleeve 25 extending therethrough.
~', '' -5~
: ~ ' - ' ' .~.
: . ' ' ' A shouldered washer 26 is secured to the stem against which the bushing rests and a friction washer 27 may be inter- -persed between the bushing and the shoulder 26. The bushing 24 can of course be made from any elastomeric flexible material as desired.
In this embodiment, a helical screw thread flight 28 is formed around the stem between the apertures 22 and the point- -ed end 18 to assist in engaging the device into the trunk as will hereinafter be described.
In operation of this embodiment, the reservoir aperture 15 is first drilled as hereinbefore described whereupon the stem ~:~
is inserted centrally through this aperture so that the pointed end 18 engages the base 29 of the reservoir aperture 15 where-upon the stem is rotated by means of wings 19 to draw the stem : -into the position due to the engagement of the screw thread 28 .
with the trunk 14.
The bushing assembly is grasped by the operator to prevent same rotating as the stem is rotated so that the bushing .
is drawn into sealing relationship with the roughened outer sur- :
face of the bark 11 and gradually compressed into sealing rela-tionship with the bark surrounding the reservoir aperture 15.
: .
, ' .
The source of fungicide under pressure (not illustra-., ... .. ., . , , . ,~ . , .; ~ .
~08~ 5 ted) is connected to the portions 21 so that fungicide in solution flows through the stem and through the apertures 22 and into the reservoir aperture 15. Maintaining the fungi-cide under pressure causes same to feed into vascular system of the tree through the cambium layer 13 rapidly and easily and o~ course it will be appreciated that the device can be left unattended for periods of time until the required quantity has been taken up by the tree.
Figure 3 shows an alternative embodiment which is . -similar to that shown in Figure 1 with the exception that the helica screw thread 28 is not required. An impact head 30 is formed on the other end 20 of the stem so that the device may .
be driven into position rather than screwed into position as hereinbefore described.
"
' ' If desired, annular ribs 31 can be provided adjacent . ;
the point 18 of the stem to retain the device in position and :
the bushing 24 of course does not rotate in this embodiment but is compressed against the outer surface of the bark by an annular shoulder 32 formed adjacent the end 20 of the stem and :;~
below the connecting portion 21.
' Figure 4 shows the preferred embodiment in which the . .
stem 17 is shouldered as at 32 with the other end 20 at the stem : ~
being of a larger diameter than the portion 17. A bushing 33 ...
.... ........ ..
-7- :
..
. -. . . . .,: . . , . ~ , :
is in the form of a truncated tapered cone and may be made of fairly hard synthetic plastic material. Apertures 22 are formed in thé stem portion 17 just clear of the bushing 33.
Extending tubular portions 21 provide fluid connec-tion to the interior of the hollow stem portions 20 and 17 so that liquid can exit through the apertures 22. The extremity 30 of the portion 20 may be used as an impact head in order to drive the injector into the tree in a manner similar to that hereinbefore described with the tapered conical bushing 33 ,. .:
sealing the bore 15 once the injector is in place.
Since various modifications can be made in my inven-tion as hereinabove described, and many apparently widely different embodimenks of same made within the spirit and scope ;
of the claims without departing from such spirit and scope, ;~
it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
~ ' .:
. , .
: .
;
.. . . . . .
. ~ . . ,
Claims
WHAT I CLAIM AS MY INVENTION:
(1) An injector for fungicides and the like adapted to be used in a tree trunk having a reservoir aperture formed through the bark, the cambium layer and part way into the trunk of the tree; comprising in combination a hollow elongated taper-ed stem terminating at one end thereof in a truck piercing point, liquid fungicide ejection apertures formed through the wall of said stem and communicating with the interior thereof, a resil-ient sealing bushing surrounding said stem towards the other end of said stem whereby said apertures are between said bushing and said one end, and means to engage said stem through the reser-voir aperture and into the trunk at the base of said reservoir aperture, whereby said sealing bushing sealably engages with the outer surface of the bark of said tree surrounding said reser-voir aperture, said resilient sealing bushing including means whereby said stem is rotatable relative to said bushing, said last mentioned means comprising a gland sleeve through said bush-ing between said bushing and said stem, and means to seal said bush-ing relative to said stem when installed.
(2) The injector according to Claim 1 in which said means to engage said stem through the reservoir aperture com-prises a helical screw thread flight formed around said stem be-tween said ejection apertures and said one end.
(3) The injector according to Claim 1 in which said means to engage said stem through said reservoir aperture com-prises an impact head formed on said other end of said stem.
(1) An injector for fungicides and the like adapted to be used in a tree trunk having a reservoir aperture formed through the bark, the cambium layer and part way into the trunk of the tree; comprising in combination a hollow elongated taper-ed stem terminating at one end thereof in a truck piercing point, liquid fungicide ejection apertures formed through the wall of said stem and communicating with the interior thereof, a resil-ient sealing bushing surrounding said stem towards the other end of said stem whereby said apertures are between said bushing and said one end, and means to engage said stem through the reser-voir aperture and into the trunk at the base of said reservoir aperture, whereby said sealing bushing sealably engages with the outer surface of the bark of said tree surrounding said reser-voir aperture, said resilient sealing bushing including means whereby said stem is rotatable relative to said bushing, said last mentioned means comprising a gland sleeve through said bush-ing between said bushing and said stem, and means to seal said bush-ing relative to said stem when installed.
(2) The injector according to Claim 1 in which said means to engage said stem through the reservoir aperture com-prises a helical screw thread flight formed around said stem be-tween said ejection apertures and said one end.
(3) The injector according to Claim 1 in which said means to engage said stem through said reservoir aperture com-prises an impact head formed on said other end of said stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA277,719A CA1089645A (en) | 1977-05-05 | 1977-05-05 | Apparatus for injecting fungicides and the like into trees |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA277,719A CA1089645A (en) | 1977-05-05 | 1977-05-05 | Apparatus for injecting fungicides and the like into trees |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1089645A true CA1089645A (en) | 1980-11-18 |
Family
ID=4108578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA277,719A Expired CA1089645A (en) | 1977-05-05 | 1977-05-05 | Apparatus for injecting fungicides and the like into trees |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1089645A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5239773A (en) * | 1992-06-22 | 1993-08-31 | Doolittle Jr Glayne D | Tree injection system |
| WO1996007310A1 (en) * | 1994-09-09 | 1996-03-14 | Lts Lohmann Therapie-Systeme Gmbh | Method of implanting moulded bodies containing active substances into plants |
| WO1996007311A1 (en) * | 1994-09-09 | 1996-03-14 | Lts Lohmann Therapie-Systeme Gmbh | Implantable moulded body for administering active substances to plants |
| DE4438990B4 (en) * | 1994-09-17 | 2005-10-20 | Lohmann Therapie Syst Lts | Process for the needleless injection of active substance flowable media in plants under pressure application |
| WO2008033160A1 (en) * | 2006-09-15 | 2008-03-20 | Doolittle Glayne D | System and method of injecting trees |
| WO2011148026A1 (en) * | 2010-05-25 | 2011-12-01 | Alfredo Ahumada Perez | Injection pick for dosing systemic and nutritional products into trees and palmaceae |
| DE102006018993B4 (en) * | 2006-04-25 | 2014-06-05 | Roland Kubiak | Apparatus and method for applying substances to the vascular pathways of woody plants |
-
1977
- 1977-05-05 CA CA277,719A patent/CA1089645A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5239773A (en) * | 1992-06-22 | 1993-08-31 | Doolittle Jr Glayne D | Tree injection system |
| WO1996007310A1 (en) * | 1994-09-09 | 1996-03-14 | Lts Lohmann Therapie-Systeme Gmbh | Method of implanting moulded bodies containing active substances into plants |
| WO1996007311A1 (en) * | 1994-09-09 | 1996-03-14 | Lts Lohmann Therapie-Systeme Gmbh | Implantable moulded body for administering active substances to plants |
| US5914295A (en) * | 1994-09-09 | 1999-06-22 | Lts Lohmann Therapie-Systeme Gmbh | Implantable molded articles for the administration of active substances to plants |
| DE4438990B4 (en) * | 1994-09-17 | 2005-10-20 | Lohmann Therapie Syst Lts | Process for the needleless injection of active substance flowable media in plants under pressure application |
| DE102006018993B4 (en) * | 2006-04-25 | 2014-06-05 | Roland Kubiak | Apparatus and method for applying substances to the vascular pathways of woody plants |
| WO2008033160A1 (en) * | 2006-09-15 | 2008-03-20 | Doolittle Glayne D | System and method of injecting trees |
| WO2011148026A1 (en) * | 2010-05-25 | 2011-12-01 | Alfredo Ahumada Perez | Injection pick for dosing systemic and nutritional products into trees and palmaceae |
| US8806804B2 (en) | 2010-05-25 | 2014-08-19 | Alfredo AHUMADA PEREZ | Injection pick for dosing systemic and nutritional products into trees and Palmaceae |
| EP2578074A4 (en) * | 2010-05-25 | 2017-11-01 | Alfredo Ahumada Perez | Injection pick for dosing systemic and nutritional products into trees and palmaceae |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |