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Method of using butyl hexadecanoate as attractant for beet armyworm female moth

A technology of butyl hexadecanoate and Spodoptera exigua, which is applied in the directions of attracting pests, botanical equipment and methods, biocides, etc., and can solve the problems of inability to clarify attracting and repelling activities, unidentified ingredients, etc. The effect of avoiding chemical pesticide resistance, reducing the number of eggs laid, and reducing the larval base

Inactive Publication Date: 2018-02-13
SOUTHWEST FORESTRY UNIVERSITY
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  • Application Information

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Problems solved by technology

Our experiments also found that extract mixtures of healthy and susceptible Chinese rose plants have attractant and repellent effects, respectively (Yang et al, Entomologia Experimentaliset Applicata, 2013, 148(1): 39–47), but the components have not been identified, and It is not clear what ingredients have attractant and repellent activity

Method used

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  • Method of using butyl hexadecanoate as attractant for beet armyworm female moth
  • Method of using butyl hexadecanoate as attractant for beet armyworm female moth
  • Method of using butyl hexadecanoate as attractant for beet armyworm female moth

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Embodiment Construction

[0029] 1. Attraction of adult eggs of Spodoptera exigua by butyl hexadecanoate

[0030] Put about 3 cm thick sterilized soil in two 500 mL beakers, sprinkle an appropriate amount of sterile water, and moisten the soil. Insert a bunch of 5 fresh Chinese rose branches, about 30 cm in length, into the soil in the beaker. Mark the two beakers with inserted branches as No. 1 and No. 2, respectively, and put them into the spawning cage made of fine wire mesh, about 50 cm apart. Use ethanol as a solvent to prepare a 0.01 mol / L solution of butyl hexadecanoate, take 5 mL of this solution and evenly spray the branches and leaves in the No. 1 beaker, and use 5 mL of ethanol to spray the branches and leaves in the No. 2 beaker in the same way. control.

[0031] The beet armyworm was artificially reared to pupate, the pupae were taken out and the male and female pupae were distinguished under a stereoscope, and the male and female pupae were separately raised until eclosion. Five pairs ...

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Abstract

The invention discloses a method employing hexadecanoic acid butyl ester as a female spodoptera exigua hiibner attractant, and belongs to a method for attracting insects to protect plants by virtue of semiochemicals of host plants. A 0.01 to 0.05mol / L solution, further preferably a 0.03 mol / L solution, is prepared from the hexadecanoic acid butyl ester by adopting ethanol as a solvent. The female spodoptera exigua hiibner attraction rate of the hexadecanoic acid butyl ester is tested by a Y-type olfactometer to be maximally 68.0 percent. The egg laying amount after spraying application of the hexadecanoic acid butyl ester in an indoor egg laying experiment is 15.2 times higher than the reference, and the attraction rate in a field experiment reaches 81.4 percent. Such a compound can be used for preparing a biological pesticide for preventing and controlling spodoptera exigua hiibner.

Description

technical field [0001] The present invention belongs to the method of using the semiochemicals of host plants to lure insects and protect plants. Background technique [0002] Beet armyworm Spodoptera exigua (Hübner) belongs to Lepidoptera and Noctuidae. It is a worldwide stubborn pest that can cause serious damage to more than 180 kinds of plants in 16 families. The occurrence of the disease caused serious losses to agricultural production (Wu Shichang et al., Chinese Journal of Plant Protection, 1995, 22(1): 95–96; Luo Lizhi et al., Plant Protection, 2000, 26(3): 37–39). Especially in the production process of Chinese roses in greenhouses, the beet armyworm is very harmful. At present, chemical pesticides, such as spinosad, chlorfenapyr, methomyl, and cypermethrin, are mainly used for control. However, on the one hand, the beet armyworm has strong drug resistance and rapid resistance, which often leads to the failure of chemical pesticides to control the insect; on the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/02A01P19/00
CPCA01N37/02
Inventor 杨发忠王大伟杨斌
Owner SOUTHWEST FORESTRY UNIVERSITY