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Attractant for athetis lepigone larvas

A technology of two-point moth and attractant, which is applied in the direction of attracting pests, biocides, animal repellants, etc., and can solve the problems of limited wheat bran raw materials, high price, and cumbersome methods

Inactive Publication Date: 2014-07-02
何运转 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method has a very good trapping and killing effect on the larvae of Spodoptera spp. in practical applications, due to the limited raw materials of wheat bran, the price is high, and the best lure effect is achieved after frying, so the cost is high and the method is cumbersome. The disadvantages greatly limit the practical application and promotion of this method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: Sexual behavioral responses of Spodoptera spp. to 5 kinds of attractants such as wheat bran.

[0013] Corn seedlings and fried wheat bran were used as controls in turn to test the effect of natural materials such as fried wheat bran, wheat bran, wheat bran, and wheat straw on the larvae of Spodoptera spp.

[0014] Test method: Y-type olfactometer method. The flow rate of both arms is 500ml / min, and it is carried out under dark conditions at about 25°C. The test insects were 3rd instar larvae of the same generation, healthy and of the same size, which were kept indoors. Before the experiment, the test insects were starved for 8 hours. The test time is 18:00-24:00. Introduced from the insect introduction port, when the test insect stretches its body from the "C" shape and starts to count, within 5 minutes, the test insect crawls beyond the side arm 3cm, it is considered selective, and it is recorded as an effective measurement; otherwise, it is recorded as no...

Embodiment 2

[0016] Example 2: The attracting effect of the main volatile substances of fried wheat bran such as 2-heptanone on the larvae of Spodoptera spp.

[0017] In order to determine the active components in fried wheat bran that play an attractant role, the volatile components of wheat bran and fried wheat bran were measured by gas spectrometry-mass spectrometry. The results show that whether it is wheat bran or fried wheat bran, the volatile components contained are mostly spice substances, and many of them are also food spices or essences, such as: valeraldehyde, 2-pentylfuran, 2-tridecene Aldehydes, etc. The main components of fried wheat bran are furans, ketones, alkanes, aldehydes, alcohols, etc., and there are more than 20 components. Among all the ingredients, 2-n-pentylfuran has the most content, followed by: 2-heptanone, tetradecane, furan formaldehyde, n-hexanol, etc. The main components of wheat bran are aldehydes, alcohols, furans, acids, and hydrocarbons. There are as...

Embodiment 3

[0025] Example 3: Comparison of the attracting effect of 5 μg / μL 2-heptanone and the compound mixture on the larvae of Spodoptera spp.

[0026] In order to explore the effect of compound compound on the attracting effect of the larvae of Spodoptera bispotentum, according to the above behavioral test results, 2-heptanone (5 μg / μL), which has the best attracting effect on Spodoptera spp. Eight mixtures of several compounds were further tested for indoor behavior.

[0027] See the appendix for the results of the behavioral responses of the larvae of the two-pointed moth to 8 kinds of mixtures image 3 .

[0028] attached by image 3 It can be seen that the selection rate of ACD by the larvae of S. spp. spodoptera is the highest, which is 72.7%, which is significantly different from the control (P<0.01). AC, ABCD, AD also had a strong attracting effect on Spodoptera larvae, and the attracting rates were 70%, 70% and 66.7%, respectively. AB, AE, ABCDE, ABC have poor attracting ...

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Abstract

The invention relates to an attractant for athetis lepigone larvas. The attractant is one of main volatile substances of fried wheat bran, has the obvious attracting effect, has the relatively good application prospect compared with traditional fried wheat brans, and is easy for commercialization.

Description

technical field [0001] The invention relates to an insect attractant, in particular to an efficient attractant for the larvae of the spodoptera moth. technical background [0002] In 2005, Noctuid moth was found to damage summer maize seedlings in Hebei Province for the first time, and gradually expanded the damage. In 2010, summer maize areas in the central and southern parts of Hebei Province commonly occurred. In 2011, it occurred in Hebei, Henan, Shandong, Shanxi, Anhui, Jiangsu and other places. More than 30 million mu, it has become the main pest in today's production and seriously threatens the safety of food production. [0003] The adult moths like to move and lay eggs in hidden moist places, and the larvae also like to move in hidden moist places and harm crop seedlings. In recent years, mechanized wheat harvesting and stubble sowing of summer corn have been generally realized in the Huanghuaihai summer corn producing areas, and the straw after harvesting the whea...

Claims

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Application Information

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IPC IPC(8): A01N35/02A01P19/00
Inventor 何运转李哲马继芳刘顺刘廷辉陶晡马卓
Owner 何运转
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