Rice stem borer mating disruptor and preparation method thereof

The invention relates to a technology of rice borer and interfering agent, which can be applied in the fields of botanical equipment and methods, biocides, animal repellents, etc., and can solve the problems such as inability to attract S. chinensis males, so as to reduce the population number and its harm. , low cost and high efficiency

Inactive Publication Date: 2016-08-31
JIANGXI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of rice green prevention and control, we found that using the sex attractant of the rice stem borer and the rice leaf roller at the same time could not attract the males of the rice stem borer

Method used

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  • Rice stem borer mating disruptor and preparation method thereof
  • Rice stem borer mating disruptor and preparation method thereof
  • Rice stem borer mating disruptor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Y-type olfactory test of interfering agent single product and composition on males of Chilo suppressalis

[0033] The preparation steps are as follows:

[0034] (1) Using the other three single species contained in the sexual attractant of C. medinalis and the self-made sexual attractant combination of C. medinalis in proportion as repellent sources, the olfactory response test was carried out with a Y-type olfactometer.

[0035] (2) Before the test, cis-13-octadecenol (Z13-18: OH) and cis-11-octadecenal (Z11-18: Ald) in the sex attractant of rice leaf roller were mixed with , cis-11-octadecenol (Z11-18:OH) and other three single products and cis-13-octadecenal (Z13-18:Ald): cis-13-octadecenol (Z13-18:OH):cis-11-octadecenal (Z11-18:Ald):cis-11-octadecenol (Z11-18:OH)=100:36:11:24 and cis -11-hexadecenal (Z11-16:Ald): cis-13-octadecenal (Z13-18:Ald): cis-9-hexadecenal (Z9-16:Ald): cis-13-octadecenol (Z13-18:OH): cis-11-octadecenal (Z11-18:Ald): cis-11-octadecenol (Z11...

Embodiment 2

[0039] Self-made avoidance device test of single product and composition of interfering agents on males of Chilo suppressalis

[0040] The preparation steps are as follows:

[0041] (1) The self-made avoidance device is composed as follows: air filter (activated carbon) device→distilled water humidification device→atmospheric sampler→self-made device, the self-made device is composed of three rectangular plastic boxes of 10cm×10cm×15cm, and one is opened on the top of the middle plastic box A round hole with a diameter of 2cm releases the stem borer, the middle plastic box is separated from the plastic boxes at both ends by a partition (can be pulled manually), and the plastic boxes at both ends are respectively put into 9×9cm filter paper, and 0.2ml of repellent is added respectively. Avoid the source or 0.2ml redistilled n-hexane to test the males of Chilo suppressalis for cis-13-octadecenol (Z13-18:OH), cis-11-octadecenal (Z11-18:Ald ) and cis-11-octadecenol (Z11-18:OH) an...

Embodiment 3

[0047] Interfering effects of single products of interfering agents on sexual attractants of Chilo borer

[0048] The preparation steps are as follows:

[0049] (1) cis-13-octadecenol (Z13-18:OH), cis-11-octadecenal (Z11-18:Ald) and cis- Combination of 3 single products such as 11-octadecenol (Z11-18: OH) and sex attractant of Chilo suppressalis, test the effect of the above 3 combinations and sex attractant of Chi field trapping effect.

[0050] (2) Each treatment was replicated 3 times, and boat traps were used to trap in random blocks, the sticky board was replaced every 5 days, and the number of trapped insects was recorded every day. The trapping experiment was carried out from June 18th to July 6th, the peak period of the occurrence of Chilo suppressalis.

[0051] According to attached image 3 The survey data showed that the sex attractant of C. The attractant effect of the male moth of Chipoteria significantly decreased, which was significantly different from that...

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Abstract

The invention discloses a rice chilo suppressalis mating disrupting agent and a preparation method thereof. The rice chilo suppressalis mating disrupting agent comprises, by mass, 0.03 to 8% of Z11-18:OH, 0.01 to 3% of Z13-18:OH, and 80 to 99.6% of auxiliary agent paraffin oil. The rice chilo suppressalis mating disrupting agent contains alcohols with special smell, possesses disrupting effects on mating processes of male rice chilo suppressalis with female rice chilo suppressalis, and is capable of reducing mating rate effectively, so that rice chilo suppressalis population number and harm are reduced. The rice chilo suppressalis mating disrupting agent is low in cost, and high in efficiency, is friendly to natural enemies, and is safe for people and livestock. A preparation method is simple; the rice chilo suppressalis mating disrupting agent can be used for comprehensive control of rice chilo suppressalis, is especially suitable to be used in rice pollution-free production, and possesses a promising industrialization prospect.

Description

technical field [0001] The invention belongs to the field of green prevention and control of rice pests, and in particular relates to a rice stem borer mating dry agent and a preparation method thereof. Background technique [0002] Chilo suppressalis (Walker) belongs to the family Lepidoptera and is one of the most serious pests in temperate and subtropical Asian rice growing areas. Rice stem borer has mixed feeding habits, larva borer damage, long moth moth period for adults, and the peak moth moth moth and larval hatching peaks are not obvious, which brings difficulties to control. At present, people mainly use organic synthetic insecticides to prevent and control rice stem borer. Due to the long-term use of insecticides and the high frequency and large dosage of pesticides. This unreasonable way of using medicines has killed a large number of natural enemies, seriously damaged the ecological balance of farmland, caused the pests to lose their natural control, formed a v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N31/02A01P19/00
Inventor 魏洪义付小刚王广利李卫春刘伟姚志文
Owner JIANGXI AGRICULTURAL UNIVERSITY
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