CN1163694A - Pest killing method for pear quarantine - Google Patents
Pest killing method for pear quarantine Download PDFInfo
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- CN1163694A CN1163694A CN 97103515 CN97103515A CN1163694A CN 1163694 A CN1163694 A CN 1163694A CN 97103515 CN97103515 CN 97103515 CN 97103515 A CN97103515 A CN 97103515A CN 1163694 A CN1163694 A CN 1163694A
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- pear
- celfume
- stifling
- quarantine
- antistaling agent
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Abstract
A pest-killing and quarantine method of pear includes such technological steps as pre-treating the pear with aqueous solution of fresh-keeping agent which can suppress the respiratory intensity of pear and has antioxidative power, after laying aside for 6 hr, and fumigating it with fumigant which may be bromomethane, modified bromomethane, bromoethane, or modified bromoethane. It can effectively kill the pests such as borer, bollworm, mites, etc. and their ova. Its advantages include high effect, no addition of residual agriculture chemical and ensuring pear quality.
Description
The present invention relates to the preservation and the insecticidal technology field of fruit.
Pear is the traditional category of China fruit outlet, in recent years, along with countries in the world to the improving constantly of import quarantine request, the outlet pear has had a strong impact on China's pear foreign exchange earning because of the defective situation of being returned goods of quarantining happens occasionally.Pear will be subjected to the influence of various quarantine pest insects inevitably in process of growth, in plucking packaging process, take the method for hand picking can not remove insect and ovum fully, so be difficult to reach export requirement.In order to remove outlet pear quarantine insect effectively, common way is except that pear is strengthened management vegetative period, and what also have kills with the method that chemical pesticide soaks fruit adopting the back.But that this method is handled is not only bothersome, need special installation but also increase residue of pesticide, causes that medicine is residual not to conform with export requirement.Adopt volatile chemical agent methyl bromide fumigation pear to kill quarantine pest insect, have good penetrability, simple to operate, be convenient to focus on, advantage such as good disinsection effect, do not increase residue of pesticide after the processing, once China was exported as Ministry of Agriculture Canada, the pear that is detected quarantine pest insect is fumigated with Celfume and is killed, but the pear after stifling promptly produces serious poisoning soon, loses commodity value.The generation of poisoning has limited the application of Celfume on pear is stifling.
The purpose of this invention is to provide a kind of pest killing method for pear quarantine, it handles the stifling method in back by giving, and can not only kill the pear quarantine insect effectively, and can prevent the stifling poisoning that pear is produced effectively, do not increase residue of pesticide, guarantee the pear quality.
The present invention is achieved in that a kind of pest killing method for pear quarantine, it is characterized in that at first pear being given processing with suppressing the aqueous solution that the pear respiratory intensity has the antistaling agent of non-oxidizability simultaneously again, place after the 6H, fumigate with Celfume, modification Celfume, bromoethane or modification bromoethane fumigant again.
Above-mentioned antistaling agent can be one or more in diphenylamines, ethoxyquin, biphenyl or the sec-butylamine, and general solution concentration is greater than 5PPm, and the best is 100-2000PPm.
Its processing method can be used pear wrapping paper or packing case infusion method, be about to wrapping paper or packing case with above-mentioned solution soaking after, dry or dry, with it pear is packaged.
Another kind of processing method is with soaking the fruit method, soon pear with above-mentioned solution soaking after, air-dry getting final product.
Soak add the surfactant effect that can reduce solution surface tension in the solution used of fruit method will be better.Because there is a layer wax on the pear surface, add surfactant, the molten bubble of favourable increase adheres in that pears are lip-deep.Surfactant can be used peregal-9, OP-10, LAS, agricultural newborn 300# or agricultural newborn 500# etc.
Through the pear that gives processing, if put into closed container again, give stiflingly again with SO2 or N2, more than the time 1H, as 1-7 days, giving treatment effect will be better.
Above-mentioned stifling deinsectization can be 99.5% Celfume with purity, stifling consumption 10-80g/m
3, temperature 6-35 ℃, the time is 1-6H, ventilates then, and the fumigant redundance is vapored away.
Also available modification methyl bromide fumigation, proportioning is: the Celfume of 99.5% purity: CO2=1-4: 4-1, stifling consumption 10-80g/m
3, temperature 6-35 ℃; Time is 1-6H, ventilates then, and the fumigant redundance is vapored away.
Studies show that: with the methyl bromide fumigation pear, easily cause core and pulp generation brown stain, the prolongation in time and dehydration mummification loses commodity value.Tracing it to its cause mainly is because the methyl bromide fumigation pear is permeable in pear inside, promotes respiratory intensity, influences its physiological metabolism, causes the terpene compound metabolism disorder, promotes due to the farnesene oxidation.In order to address this problem, can consider from two aspects: the first, suppress or temporarily suppress the pear respiratory intensity, reduce easy oxidized terpenoid substance and produce; The second, suppress the generation of the terpenoid substance oxidation of its physiological metabolism generation.Antistaling agent commonly used and the inert gases such as biphenyl, diphenylamines, sec-butylamine, ethoxyquin, sulphur dioxide that have simultaneously antioxygenic property because we have selected to suppress the pear respiratory intensity, as nitrogen etc., before methyl bromide fumigation, pear is carried out preliminary treatment, can suppress the terpenoid substance oxidation, adjust respiratory intensity, in conjunction with the strict stifling condition and the pear storage technology of science, so do not produce poisoning after can making pear adopt Celfume etc. to fumigate.
Characteristics of the present invention are: can kill outlet pear quarantine insect effectively, for example Mealybugs, yellow mealworm, pear sucker, cotton bollworm, heart-eating worm, hide class and ovum thereof etc. from, and can prevent effectively because of stifling poisoning that pear is produced such as Celfumes, do not increase residue of pesticide, guarantee the pear quality.
Be described further below in conjunction with embodiment, but not as a limitation of the invention.
Embodiment 1:
The diphenylamines aqueous solution of 1000ppm is sprayed on common pear wrapping paper, and with whole wetting degree of being, dry back is standby.
Pluck back 1 month pear that has quarantine pest insect,, stored for two weeks, get 100, place 1m with the above wrapping paper parcel of handling through diphenylamines
3Lidded container in, under 15 ℃ of constant temperatures, added the 40g Celfume airtight stifling 2 hours, open container cover, ventilated 1 hour, take out and case.In 10-15 ℃, humidity 90% stores, 1 week the back check the quarantine pest insect death condition, Kang Shi Mealybugs, yellow mealworm, pear sucker, heart-eating worm, lethality such as hide from and be 100%; Two weeks back inspection poisoning situation, core and pulp all do not have brown stain, and good fruit rate 100% stores after two months in freezer, and good really rate still is 100%.
Embodiment 2:
The diphenylamines aqueous solution of 1000ppm adds 5 ‰ surfactants, stirs evenly, and gets the back pear that had quarantine pest insect in 10 days of harvesting and soaks for 5 seconds in this solution, takes out air-dry moisture content.Stored for two weeks, get 100, place 1m
3Lidded container in, under 15 ℃ of constant temperatures, added the 40g Celfume airtight stifling 2 hours, open container cover, ventilated 1 hour, take out and case.The quarantine pest insect death condition is checked in 1 week back, Kang Shi Mealybugs, yellow mealworm, pear sucker, heart-eating worm, lethality such as hides from and is 100%; Two weeks back inspection poisoning situation, core and pulp all do not have brown stain, and good fruit rate 100% stores after two months in freezer, and good really rate still is 100%.
With other antistaling agent test, effect is also more satisfactory, slightly.
Claims (10)
1, a kind of pest killing method for pear quarantine, it is characterized in that at first pear being given processing with suppressing the aqueous solution that the pear respiratory intensity has the antistaling agent of non-oxidizability simultaneously again, place after the 6H, fumigate with Celfume, modification Celfume, bromoethane or modification bromoethane fumigant again.
2, method according to claim 1 is characterized in that described antistaling agent is one or more in diphenylamines, ethoxyquin, biphenyl or the sec-butylamine, and solution concentration is greater than 5PPm.
3, method according to claim 2 is characterized in that solution concentration is preferably 100-2000PPm.
4, method according to claim 1 is characterized in that processing method with wrapping paper or packing case infusion method, be about to wrapping paper or the aqueous solution soaking of case with described antistaling agent after, dry or dry, with it pear is packaged.
5, method according to claim 1 is characterized in that processing method with soaking the fruit method, be about to the aqueous solution soaking of pear with described antistaling agent after, air-dry getting final product.
6, method according to claim 5 is characterized in that adding in the solution surfactant that can reduce solution surface tension.
7, method according to claim 6 is characterized in that surfactant is a peregal-9, OP-10, LAS, agricultural newborn 300# or agricultural newborn 500#.
8, according to claim 1,2,3,4,5,6 or 7 described methods, it is characterized in that the pear after handling is put into closed container again, give stifling with SO2 or N2.
9, method according to claim 1 is characterized in that with purity being 99.5% Celfume, stifling consumption 10-80g/m
3, temperature 6-35 ℃, the time is 1-6H, ventilates then, and the fumigant redundance is vapored away.
10, method according to claim 1 is characterized in that modification Celfume proportioning is, the Celfume of 99.5% purity: CO2=1-4: 4-1, stifling consumption 10-80g/m
3, temperature 6-35 ℃, the time is 1-6H, ventilates then, and the fumigant redundance is vapored away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97103515 CN1163694A (en) | 1997-03-21 | 1997-03-21 | Pest killing method for pear quarantine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97103515 CN1163694A (en) | 1997-03-21 | 1997-03-21 | Pest killing method for pear quarantine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1163694A true CN1163694A (en) | 1997-11-05 |
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ID=5166694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97103515 Pending CN1163694A (en) | 1997-03-21 | 1997-03-21 | Pest killing method for pear quarantine |
Country Status (1)
| Country | Link |
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| CN (1) | CN1163694A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104735982A (en) * | 2012-10-22 | 2015-06-24 | 宝洁公司 | Psyllium husk fumigated with methyl bromide |
-
1997
- 1997-03-21 CN CN 97103515 patent/CN1163694A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104735982A (en) * | 2012-10-22 | 2015-06-24 | 宝洁公司 | Psyllium husk fumigated with methyl bromide |
| CN104735982B (en) * | 2012-10-22 | 2016-10-05 | 宝洁公司 | With the Semen Plantaginis shell that MB is stifling |
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