JPS6113771B2 - - Google Patents

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Publication number
JPS6113771B2
JPS6113771B2 JP4656780A JP4656780A JPS6113771B2 JP S6113771 B2 JPS6113771 B2 JP S6113771B2 JP 4656780 A JP4656780 A JP 4656780A JP 4656780 A JP4656780 A JP 4656780A JP S6113771 B2 JPS6113771 B2 JP S6113771B2
Authority
JP
Japan
Prior art keywords
sex pheromone
day
release
tube
molecular weight
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
Application number
JP4656780A
Other languages
Japanese (ja)
Other versions
JPS56142202A (en
Inventor
Akira Yamamoto
Seiya Tezuka
Toshinobu Ishihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Priority to JP4656780A priority Critical patent/JPS56142202A/en
Publication of JPS56142202A publication Critical patent/JPS56142202A/en
Publication of JPS6113771B2 publication Critical patent/JPS6113771B2/ja
Granted legal-status Critical Current

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Description

【発明の詳細な説明】 本発明は、害虫防除に使用される性フエロモン
物質を長期間にわたつて徐々に放出し得る性フエ
ロモン放出管に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sex pheromone release tube capable of gradually releasing sex pheromone substances over a long period of time for use in pest control.

近年、コナガ、モモシンクイガ、ワタアカミム
シなど各種の害虫を防除するために、性フエロモ
ン物質を応用する研究が広く行われている。害虫
防除をこのような性フエロモン物質を使う交信撹
乱法で行う場合、長期間にわたつて性フエロモン
物質を適量で徐々に放出させることが実際面では
きわめて重要な事項であるが、従来このための有
利な手段は開発されていない。
In recent years, research has been widely conducted on the application of sex pheromones to control various pests such as the diamondback moth, the peach moth, and the cotton worm. When pest control is carried out using the communication disruption method using such sex pheromone substances, it is actually extremely important to gradually release the sex pheromone substances in appropriate amounts over a long period of time. No advantageous means have been developed.

本発明者らは、かかる技術的課題にかんがみ、
特に分子量が250以上であるような比較的分子量
の大きい性フエロモン物質について、これを長期
間連続して徐々に放出させる方法を開発すべく、
鋭意研究を重ねた結果、本発明に到達した。
In view of such technical problems, the present inventors have
In particular, for sex pheromone substances with a relatively large molecular weight, such as those with a molecular weight of 250 or more, we aimed to develop a method to gradually release them continuously over a long period of time.
As a result of extensive research, we have arrived at the present invention.

すなわち、本発明は、低密度ポリエチレン製の
肉厚0.1〜0.3mmの細管中に、分子量が250〜310の
範囲にある性フエロモン物質を充てんしてなる性
フエロモン放出管に関するものであり、これによ
れば分子量250以上であるような比較的高分子量
の性フエロモン物質たとえばコナガの性フエロモ
ンであるZ−11−ヘキサデセニルアセテート(分
子量282)やモモシンクイガの性フエロモンであ
るZ−7−エイコセン−11−オン(分子量294)
が、細管の肉厚部を透過し、細管の全外周面から
大気中に徐々に放出され、この放出は長期間にわ
たつてほぼ一定速度で行われ、しかも細管中に性
フエロモンが気散せずに残留することはほとんど
なく、その全量が大気中に放散されるという注目
すべき利点が与えられる。
That is, the present invention relates to a sex pheromone emitting tube made of a thin tube made of low density polyethylene with a wall thickness of 0.1 to 0.3 mm and filled with a sex pheromone substance having a molecular weight in the range of 250 to 310. According to the study, relatively high molecular weight sex pheromone substances with a molecular weight of 250 or more, such as Z-11-hexadecenyl acetate (molecular weight 282), which is the sex pheromone of the diamondback moth, and Z-7-eicosene, which is the sex pheromone of the peach moth, 11-one (molecular weight 294)
The pheromone passes through the thick part of the tubule and is gradually released into the atmosphere from the entire outer circumferential surface of the tubule, and this release occurs at a nearly constant rate over a long period of time. It has the notable advantage that very little remains and the entire amount is dissipated into the atmosphere.

さらにポリエチレンは比較的安価な材料である
うえに、性フエロモン物質に対して不活性であ
り、またポリエチレンは腐食性であつて長期間風
雨にさらされても変質することのない安定性の高
い材料であるので、本発明にかかる性フエロモン
放出管はきわめて高信頼性のものであるという利
点が与えられる。
Furthermore, polyethylene is a relatively inexpensive material, is inert to sex pheromone substances, and is a highly stable material that is corrosive and will not deteriorate even when exposed to the elements for long periods of time. Therefore, the sex pheromone emitting tube according to the present invention has the advantage of being extremely reliable.

本発明をさらに詳しく説明すると、本発明の目
的に使用される細管は、低密度のポリエチレン樹
脂から作られたものであることが必要とされ、こ
れが高密度ないし中密度のポリエチレンから作ら
れたものであると、分子量250以上のような比較
的分子量の高い性フエロモン物質を透過放出させ
るのがむつかしく適当でない。
To explain the invention in more detail, the capillary used for the purpose of the invention is required to be made of a low density polyethylene resin, and this is required to be made of a high density to medium density polyethylene resin. In this case, it is difficult and inappropriate to transmit and release a sex pheromone substance having a relatively high molecular weight, such as a molecular weight of 250 or more.

一方細管の肉厚は0.1〜0.3mm程度のものがもつ
とも望ましく、これが0.3mm以上になると、本発
明が対象とするような高分子量の性フエロモン物
質の透過放出速度が小さくなりすぎて実用的でな
くなるし、逆に0.1mm以下の肉厚であると細管自
体の強度が弱すぎて取扱いに不便が生じるほか、
この場合には性フエロモン物質の透過放出速度が
大きくなりすぎ、高価な性フエロモン物質の無だ
な放出がもたらされ、やはり実用的でなくなる。
On the other hand, it is preferable that the thin tube has a wall thickness of about 0.1 to 0.3 mm; if it exceeds 0.3 mm, the permeation and release rate of the high molecular weight sex pheromone substance targeted by the present invention will be too low to be practical. On the other hand, if the thickness is less than 0.1 mm, the strength of the tube itself will be too weak, making it inconvenient to handle.
In this case, the rate of permeation and release of the sex pheromone substance becomes too high, resulting in unnecessary release of the expensive sex pheromone substance, which is also impractical.

細管の内径は1mm以下であることが好ましく、
これが1mm以上のものであると、性フエロモンの
一定充てん量に対する透過放出表面積が小さくな
り、放出速度が遅くなりすぎるという不利が生じ
るほか、経日的に残存フエロモン量を測定するこ
とにより放出速度をチエツクする際にも、放出に
ともなう残存フエロモン量の変化が小さく不便で
ある。なお、内径のあまりに小さい細管であると
性フエロモン物質の充てんに困難をともなうほ
か、長期間連続的に放出させる目的も達成されな
くなるので、通常は0.3mm以上とすることが望ま
しい。
The inner diameter of the thin tube is preferably 1 mm or less,
If this is 1 mm or more, the permeation and release surface area for a fixed amount of sex pheromone will be small, resulting in a disadvantage that the release rate will be too slow. When checking, it is inconvenient because the amount of residual pheromone changes little due to release. Note that if the inner diameter of the tube is too small, it will be difficult to fill it with the sex pheromone substance, and the purpose of continuous release over a long period of time will not be achieved, so it is usually preferable that the inner diameter is 0.3 mm or more.

このような細管は通常の低密度のポリエチレン
樹脂を一般の押出成形法等により容易に製造する
ことができる。
Such a thin tube can be easily manufactured using a conventional low-density polyethylene resin by a conventional extrusion molding method or the like.

つぎに、本発明が対象とする分子量250〜310の
性フエロモン物質としては、前記したZ−11−ヘ
キサデセニルアセテートやZ−7−エイコセン−
11−オンのほかに、ワタアカミムシの性フエロモ
ンである(Z,Z)−7,11−ヘキサデカジエニ
ルアセテートおよび(Z,E)−7,11−ヘキサ
デカジエニルアセテート(分子量280)、コスカシ
バの性フエロモンである(Z,Z)−3,13−オ
クタデカジエニルアセテートおよび(Z,E)−
3,13−オクタデカジエニルアセテート(分子量
308)、コカクモンハマキの性フエロモンであるZ
−9−テトラデセニルアセテート(分子量254)、
およびチヤハマキの性フエロモンであるZ−11−
テトラデセニルアセテート(分子量254)などが
例示される。
Next, the sex pheromone substances with a molecular weight of 250 to 310 targeted by the present invention include the aforementioned Z-11-hexadecenyl acetate and Z-7-eicosene-
In addition to 11-one, (Z,Z)-7,11-hexadecadienyl acetate and (Z,E)-7,11-hexadecadienyl acetate (molecular weight 280), which are sex pheromones of cotton wool beetles, (Z,Z)-3,13-octadecadienyl acetate and (Z,E)-
3,13-octadecadienyl acetate (molecular weight
308), Z, the sex pheromone of Kokakumon Hamaki
-9-tetradecenyl acetate (molecular weight 254),
and Z-11-, the sex pheromone of Chiyahamaki.
Examples include tetradecenyl acetate (molecular weight 254).

本発明の性フエロモン放出管は、前記した低密
度ポリエチレン製の細管中に上記性フエロモン物
質を、たとえば減圧で注入した後、通常は両端を
熱溶解して内封することにより得られる。しか
し、一端を閉じて他端を開口のままにしておいて
もよい。開口部からの性フエロモン物質の放出は
微量であり、大部分は細管の肉厚部を透過して放
出される。
The sex pheromone emitting tube of the present invention is obtained by injecting the sex pheromone substance into the thin tube made of low-density polyethylene, for example under reduced pressure, and then thermally melting both ends and sealing the tube. However, one end may be closed and the other end left open. The amount of sex pheromone substance released from the opening is minute, and most of it is released through the thick part of the tubule.

本発明の性フエロモン放出管を使つて、交信撹
乱法により害虫防除を行う場合、その使用態様に
応じて細管の形状、寸法等を選択することが望ま
しい。
When using the sex pheromone emitting tube of the present invention to control pests by the communication disruption method, it is desirable to select the shape, size, etc. of the capillary depending on the mode of use.

たとえば、放出管を目的の地域にばらまく場合
は、細管として比較的短かめのもの(長さ1〜20
cm程度)を、また特定の場所に設置する場合は比
較的長めのものを使用することがよい。長めのも
のといつてもおのずと限度があり、普通には60cm
程度までのものである。また細管の形状は対象と
なる作物により変えるのが望ましく、たとえば果
樹の枝につり下げる場合はリング状のもの、また
畑のうねに張る場合はロープ状とするなど目的に
応じ工夫すればよい。
For example, when distributing release tubes in the target area, use relatively short tubes (1 to 20 mm long).
cm), or relatively long ones when installing in a specific location. There is naturally a limit when it comes to long items, and the normal length is 60cm.
It is up to a certain extent. It is also desirable to change the shape of the tubule depending on the target crop; for example, a ring-shaped tube can be used to hang it on a branch of a fruit tree, or a rope-shaped tube can be used to stretch it along the ridges of a field. .

つぎに、具体的実施例をあげる。 Next, specific examples will be given.

実施例 1 肉厚0.28mm、内径0.48mm、外径1.04mmの低密度
ポリエチレン製の細管に、コナガの性フエロモン
であるZ−11−ヘキサデセニルアセテート(分子
量282)を、一方の口を減圧にすることにより30
mg(細管の充てん部長さ184mm)注入した後、両
端を熱溶融することにより内封し、全長200mmの
放出管を作つた。
Example 1 Z-11-hexadecenyl acetate (molecular weight 282), a sex pheromone of the diamondback moth, was added to a thin tube made of low-density polyethylene with a wall thickness of 0.28 mm, an inner diameter of 0.48 mm, and an outer diameter of 1.04 mm through one end. 30 by reducing the pressure
After injecting mg (filled tube length: 184 mm), both ends were sealed by heat-melting to create a discharge tube with a total length of 200 mm.

この放出管を温度30℃、風速0.5m/秒の条件
下に保持し、性フエロモン物質の放出速度を調べ
るために、一定日数経過する毎に細管中の残存フ
エロモン量を測定したところ、下記のとおりの結
果が得られた。
This discharge tube was maintained at a temperature of 30°C and a wind speed of 0.5 m/sec, and in order to investigate the release rate of the sex pheromone substance, the amount of residual pheromone in the tube was measured every certain number of days. The exact results were obtained.

経過日数 残存フエロモン量(mg) 3日目 26 10日目 22 20日目 17 30日目 13 40日目 7 50日目 2.5 60日目 0 放置3日目まではやや急な放出であつたが、3日
目から50日目まではほぼ0.5mg/日の一定した放
出であり、それからはやや放出速度が遅くなつ
た。なお、58日目には残量はほとんどなくなつ
た。
Amount of pheromone remaining after elapsed days (mg) 3rd day 26 10th day 22 20th day 17 30th day 13 40th day 7 50th day 2.5 60th day 0 Release was somewhat rapid until the 3rd day of storage. From day 3 to day 50, the release was constant at approximately 0.5 mg/day, and then the release rate slowed down somewhat. In addition, on the 58th day, the remaining amount was almost gone.

実施例 2 肉厚0.22mm、内径0.48mm、外径0.92mmの低密度
ポリエチレン製の細管中に、モモシンクイガの性
フエロモンであるZ−7−エイコセン−11−オン
を30mg注入した(充てん部長さ184mm)。両端を封
じ放出管とした(全長300mm)。
Example 2 30 mg of Z-7-eicosen-11-one, a sex pheromone of the peach moth, was injected into a thin tube made of low-density polyethylene with a wall thickness of 0.22 mm, an inner diameter of 0.48 mm, and an outer diameter of 0.92 mm (filling length: 184 mm). ). Both ends were sealed to form a discharge tube (total length 300mm).

これを前例と同様の条件下に保持して、一定日
数経過する毎に細管中の残存フエロモン量を測定
したところ、下記のとおりの結果が得られた。
When this was maintained under the same conditions as in the previous example and the amount of residual pheromone in the capillary was measured every certain number of days, the following results were obtained.

経過日数 残存フエロモン量(mg) 4日目 25 10日目 22.5 20日目 17.5 30日目 13.5 40日目 8 50日目 3 60日目 0 4日目からほぼ0.47mg/日と一定速度で放出され
55日目まで続いた。それからやや放出速度は遅く
なつたが60日経過後にはほとんど残量はなくなつ
た。
Amount of pheromone remaining after elapsed days (mg) 4th day 25 10th day 22.5 20th day 17.5 30th day 13.5 40th day 8 50th day 3 60th day 0 Released at a constant rate of approximately 0.47mg/day from the 4th day Been
It lasted until the 55th day. After that, the release rate slowed down a bit, but after 60 days there was almost no remaining amount.

比較例 1 肉厚0.35mm、内径0.48、外径1.18mmの低密度ポ
リエチレン製の細管中に、実施例2と同様にして
Z−7−エイコセン−11−オンを30mg注入し、放
出管を作つた。
Comparative Example 1 In the same manner as in Example 2, 30 mg of Z-7-eicosen-11-one was injected into a thin tube made of low-density polyethylene with a wall thickness of 0.35 mm, an inner diameter of 0.48 mm, and an outer diameter of 1.18 mm to create a release tube. Ivy.

このものは実施例2と同様の条件下に放置した
が、性フエロモンの放出はわずかであつて、62日
間経過後で5mg放出されたにすぎなかつた。
Although this product was left under the same conditions as in Example 2, the release of sex pheromone was small, and only 5 mg was released after 62 days.

比較例 2 実施例1の細管の代りに、高密度ポリエチレン
製の細管(寸法、形状は同一のもの)を使つたほ
かは同例と同じにして放出管を作り、性フエロモ
ン(Z−11−ヘキサデセニルアセテート)の放出
速度を同様にして調べたところ、放出量はわずか
であつて、60日経過後でも30mgのうち26mgが細管
中に残存していた。
Comparative Example 2 A release tube was made in the same manner as in Example 1 except that a high-density polyethylene thin tube (same size and shape) was used in place of the thin tube in Example 1, and a sex pheromone (Z-11- When the release rate of hexadecenyl acetate (hexadecenyl acetate) was similarly investigated, the amount released was small, with 26 mg of the 30 mg remaining in the tubules even after 60 days.

Claims (1)

【特許請求の範囲】 1 低密度ポリエチレン製の肉厚0.1〜0.3mmの細
管中に、分子量が250〜310の範囲にある性フエロ
モン物質を充てんしてなる性フエロモン放出管。 2 前記細管が0.3〜1mmの内径を有するもので
ある特許請求の範囲第1項記載の性フエロモン放
出管。
[Scope of Claims] 1. A sex pheromone release tube made of a thin tube made of low-density polyethylene with a wall thickness of 0.1 to 0.3 mm and filled with a sex pheromone substance having a molecular weight in the range of 250 to 310. 2. The sex pheromone emitting tube according to claim 1, wherein the thin tube has an inner diameter of 0.3 to 1 mm.
JP4656780A 1980-04-09 1980-04-09 Sexual pheromone releasing pipe Granted JPS56142202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4656780A JPS56142202A (en) 1980-04-09 1980-04-09 Sexual pheromone releasing pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4656780A JPS56142202A (en) 1980-04-09 1980-04-09 Sexual pheromone releasing pipe

Publications (2)

Publication Number Publication Date
JPS56142202A JPS56142202A (en) 1981-11-06
JPS6113771B2 true JPS6113771B2 (en) 1986-04-15

Family

ID=12750890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4656780A Granted JPS56142202A (en) 1980-04-09 1980-04-09 Sexual pheromone releasing pipe

Country Status (1)

Country Link
JP (1) JPS56142202A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6310702A (en) * 1986-07-01 1988-01-18 Ube Ind Ltd Production of slow-releasing preparation
JP6561021B2 (en) * 2016-08-12 2019-08-14 信越化学工業株式会社 Rope pheromone preparation and communication disruption method using the same
JP7257309B2 (en) * 2019-10-30 2023-04-13 信越化学工業株式会社 Control method for Spodoptera
CN111713469A (en) * 2020-05-22 2020-09-29 深圳市鑫稻田农业技术科技有限公司 Trapping device with compound insect sex pheromone attracting core and application thereof

Also Published As

Publication number Publication date
JPS56142202A (en) 1981-11-06

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