Mating disruption method using acetate-containing mating disruptant

一种乙酸酯、干扰剂的技术，应用在交配干扰剂领域，能够解决防治变差、很难制剂放置、没有表现出防治效果等问题，达到降低损失的效果

Active Publication Date: 2012-12-12
SHIN ETSU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that, when sex pheromones are not used during flower bud formation period, pink bollworm density becomes high during cotton seed formation period and control by sex pheromones becomes poor
The height of the cotton tree in the flower bud formation period is only 20 to 30 cm so that no control effect is exhibited in the case where the dusting powder only falls to the ground even if the sex pheromone powder preparation is used
Also, in the case where pheromone preparations are placed by hand, it is also difficult to place these preparations on the cotton tree due to the cotton tree height of 20 to 30 cm

Method used

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  • Mating disruption method using acetate-containing mating disruptant
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  • Mating disruption method using acetate-containing mating disruptant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and 2 and comparative example 1 to 3

[0061] For the European vine moth, fields each having an area of ​​2 ha (hectare) were prepared. In comparative examples 1 and 2, in sites 1 and 2, 500 tubes / ha of mating disruptor, each containing 240 mg of E7 containing E7, Z9-dodecadienol, were placed on April 15 , Z9-dodecadienyl acetate sex pheromone. In Site 1 and Site 2, the amounts of E7, Z9-dodecadienol contained were different as shown in Table 2, respectively. In Examples 1 and 2, in Sites 3 and 4, the same amount of predetermined mating disruptor was placed on June 1st. Also, in Comparative Example 3, site 5 was provided as a control site at a position 200 m northeast of the nearest test site, in which no mating disruptor was placed.

[0062] It should be noted that in Site 5 of Comparative Example 3 which is an insecticide site, the chlorpyrifos agent was sprayed once for the second generation, and the chlorpyrifos agent was sprayed once and the BT agent was sprayed twice for the third generation. In all fields...

Embodiment 3 and 4 and comparative example 4 to 9

[0070] For D. orientalis, in a peach field in Australia, a field with high insect density and a field with low insect density (with an area of ​​6 ha each) were divided into three equal parts from east to west, respectively. In Comparative Examples 4 and 7, in site 2 (central site), as shown in Table 3, 500 tubes / ha of mating disruptors were placed on September 1, each tube containing 93.1:6.0 240 mg mixture of Z / E8-dodecenyl acetate pheromone and 0.9% by weight of Z / E8-dodecenyl alcohol relative to the amount of acetate. In the fields on both sides, in the absence of pheromone control against the first generation, the placement on October 5 contained acetate with the same Z:E ratio and contained 0.9 relative to acetate, respectively. Mating disruptor of Z / E8-dodecenol in % by weight (site 1 in comparative examples 5 and 8) and 3.2% by weight (site 3 in comparative examples 3 and 4). A field at a distance of 100 m was used as an insecticide site (site 4 in Comparative Example...

Embodiment 5 and comparative example 10 and 11

[0077] Trials of mating disruptors against oriental fruit moth (OFM) and peach barley moth (PTwB) were conducted. As a pheromone for D. orientalis, use Z / E8-dodecenyl acetate (Z / E8-12Ac) containing Z / E8-dodecenyl acetate (Z / E8-12Ac) with a Z:E ratio of 94:6 and the amount in Table 4 relative to acetate. Mixture of Z / E8-dodecen-1-ol (Z / E8-12OH) in the indicated amounts. As the sex pheromone of T. xanthus, E5-decen-1-ol (E5-decen-1-ol) containing E5-decenyl acetate (E5-10Ac) and the amount shown in Table 4 relative to the acetate was used. -10OH) mixture.

[0078] Duplex tubes are used for mating disruptors. One compartment contained 240 mg of oriental fruit moth pheromone, while the other contained 320 mg of Drosophila orientalis pheromone.

[0079] Table 4

[0080]

[0081] Divide the 6ha elongated field into three equal parts: Field A, Field B, and Field C. In Comparative Example 10, 500 tubes / ha of a low-alcohol mating disruptor was applied on March 25 in the central...

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PUM

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Abstract

Provided is a mating disruption method capable of bringing a stable and effective mating disruption result. Specifically provided is a mating disruption method comprising a step of starting to apply a mating disruptant after mating and oviposition of imagoes of the first generation of an insect pest are substantially over and before imagoes of the second generation of the insect pest emerge, the mating disruptant targeting at least one kind of insect pest which contains one or more kinds of acetates as a natural sex pheromone, the insect pest being selected from the group consisting of tortricid ( Leafroller ), armyworm ( Spodoptera ), Sesiidae (Synanthedon), pink bollworm ( Pectinophoragossypiella : PBW), European grapevine moth ( Lobesia botrana : EGVM), tomato pinworm ( Keiferia lycopersicella : TPW), light brown apple moth ( Epiphyes postvittana ), Grapholita dimorpha Komai ( Grapholita dimorpha ), apple leafminer ( Phyllonorycter ringoniella ), tomato leafminer ( Tuta absoluta ) and European goat moth ( Cossus cossu s), all of which are substantially free of alcohol derived from the acetates as well as oriental fruit moth ( Grapholitha molesta : OFM) and omnivorous leafroller ( Platynota stultana ), both of which contain 1.5% by weight or less of alcohol or alcohols derived from the acetates; and the mating disruptant comprising the acetates and the alcohol or alcohols derived from the acetates wherein each amount of the alcohol or alcohols is 1.5 to 10% by weight relatively to each amount of the acetates.

Description

technical field [0001] The present invention relates to a so-called mating disturbance method, which is a pest control method that releases a sex pheromone substance of a pest in a field to interfere with the mating behavior of the pest, and a mating disruptor used in the method. Background technique [0002] The mating interference method is a method in which sex pheromones are determined from secretions of pests using attractiveness as an index, and an attractant composition is used for mating interference. The mating disturbance method has been expected as a pest control method that has low toxicity and is safe for natural enemies, humans and livestock, and the environment. However, although pest control is most needed when insect densities are high, the control effectiveness is low for high population densities of pests. Therefore, even when the first generation larvae in early spring when the insect density is low are harmless to agricultural products, mating disruptor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/00A01N37/02A01N31/02A01P19/00
CPCA01N25/00A01N31/02A01N2300/00A01N37/02A01N37/06
Inventor 小川钦也北条达哉
Owner SHIN ETSU CHEM CO LTD
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