Mating disruption agent for phthorimaea operculella and application of mating disruption agent

A technology of potato pieces and orienting agent, applied in application, biocide, animal repellent, etc., can solve the problems of unsatisfactory chemical control effect, pest resistance, destruction of ecosystem, etc., and achieves long duration of effective disturbance. , the effect of strong autonomy and strong interference

Inactive Publication Date: 2018-11-16
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the larvae of the potato tuber moth bore into the host to cause damage, the long-term chemical control effect is not satisfactory
Long-term use of chemical agents to control potato tuber moths may cause pests to develop resistance, kill natural enemies, pollute the environment and destroy ecosystems, etc.

Method used

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  • Mating disruption agent for phthorimaea operculella and application of mating disruption agent
  • Mating disruption agent for phthorimaea operculella and application of mating disruption agent
  • Mating disruption agent for phthorimaea operculella and application of mating disruption agent

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The preparation method of the potato tuber moth sex pheromone lure core is as follows:

[0025] Step 1, trans-4, cis-7-tridecadien-1-ol acetate and trans-4, cis-7-tridecatrien-1-ol acetate of the sex pheromone component of potato tuber moth After the ester is fully mixed at a mass ratio of 4:1, it is fully mixed with one or two potato pheromone analogs according to the application ratio.

[0026] Step 2. The mixture obtained in step 1 was dissolved in n-hexane, and the prepared n-hexane pheromone solution had a concentration of 1000 μg / mL.

[0027] Step 3. Add 2 mL of the pheromone solution obtained in step 2 dropwise onto the blank rubber lure, and the dose of pheromone contained in the obtained potato tuber moth sex pheromone lure is 1200 μg / lure. In the test, the potato tuber moth sex pheromone lure described in the combined lure is that about 1 mL of the solution obtained in step 2 is added dropwise to the blank rubber lure, and the obtained potato tuber moth sex p...

Embodiment 1

[0029] Embodiment 1 field bioactivity assay test

[0030] When the trapping test is carried out in the field, the potato tuber moth tropism lure core or the potato tuber moth sex pheromone lure core is fixed on the moth general-purpose trap. CK1 is a blank control without potato tuber moth lures or potato tuber moth sex pheromone lures; CK2 is a control with potato tuber moth sex pheromone lures only; X1 and X2 groups are single-component pheromone analogs Treatment of lures; groups 01 to 09 were treatment of potato tuber moth lure lures containing a single component; three replicates were set up for each treatment, arranged randomly, and the interval between two adjacent traps was 15-30m. From the next day after the setting, the number of potato tuber moths trapped was recorded every morning and removed in time, and the investigation continued for 50 days. The test results are shown in Table 2.

[0031] Table 2 The trapping test results of different ratios of potato tuber m...

Embodiment 2

[0034] Embodiment 2 field persistence period test

[0035] When the trapping test is carried out in the field, the potato tuber moth tropism lure core or the potato tuber moth sex pheromone lure core is fixed on the moth general-purpose trap. trans-4,cis-7-tridecadien-1-ol acetate and / or trans-4,cis-7-tridecatrien-1-ol acetate in the sex attractant lure used, The mass ratio is 4:1; the weight ratio of the sex pheromone of the potato tuber moth to the pheromone analogue in the used lure wick is 1:0.5. Treatment group A is the treatment group without the potato tuber moth lure agent; treatment group B is the treatment group with the potato tuber moth lure agent; the two groups of treatments are regularly suspended and replaced with sex pheromone lures every 5 days. From the next day after setting, the number of potato tuber moths trapped in the hanging sex pheromone lure trap was recorded every morning and removed in time, and the investigation continued for 60 days.

[0036] ...

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Abstract

The invention discloses a mating disruption agent for phthorimaea operculella and an application of the mating disruption agent and belongs to the technical field of preparation of insect sex pheromones. The mating disruption agent for phthorimaea operculella comprises a phthorimaea operculella sex pheromone and a pheromone analogue, wherein the main ingredients of the phthorimaea operculella sexpheromone comprise trans-4, cis-7-tridecadien-1-ol acetate and trans-4, cis-10-tridecatrien-1-ol acetate in the mass ratio being 4:1; the pheromone analogue is selected from one or two of halogenatedanalogues of the sex pheromone as follows: trans-4, cis-7-tridecadien-1-ol-2,2,3,3,3-pentafluoropropionate and trans-4, cis-7, cis-10-tridecatrien-1-ol-2,2-difluoroacetate. The mating disruption agentfor phthorimaea operculella can effectively interfere in orientation of male phthorimaea operculella to female phthorimaea operculella, so that the male phthorimaea operculella are disorientated, theprobability of meeting of the male and female phthorimaea operculella is reduced, the mating ratio of the male and female phthorimaea operculella is reduced, larvae are reduced, and the purpose of pest control is achieved.

Description

technical field [0001] The invention relates to the technical field of insect sex pheromone preparation, in particular to a potato tuber moth lure agent and its application. Background technique [0002] The potato tuber moth Phthorimaea operculella (Zeller), also known as the potato wheat moth, is an oligophagous pest that damages potatoes and tobacco by larva borer. During the growth period of potatoes and tobacco, adults lay eggs in the leaf veins, and the hatched larvae eat the mesophyll and terminal buds of the host, seriously affecting plant growth and tobacco quality. During the potato harvest period, adults lay eggs in the potato tubers exposed on the soil surface. The potato tubers with eggs are transferred to the warehouse, which is more harmful to the potatoes in the storage period. The damage rate of potato tubers stored for 4 months can reach 100. %, completely loses edible value. Because the larvae of the potato tuber moth bore into the host to cause damage, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/02A01G13/00A01P19/00
CPCA01N37/02A01G13/00
Inventor 高玉林闫俊杰梅向东翁爱珍王留洋折冬梅
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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