Sex trapping cage with viruses and method for preventing and treating lepidoptera pests by using sex trapping cage

A trapping and virus technology, applied in the field of lepidopteran pest control and sexual trapping cages, can solve the problems of inability to realize the vertical transmission of virus populations, reduce the hatching rate of eggs and the survival rate of hatched larvae, reduce the probability of mating, and the output of females Reduced effect

Pending Publication Date: 2021-01-08
PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many studies in the literature on the use of pheromones and viruses to control Lepidoptera pests, but how to make adults effectively carry the virus is a difficult point in application. The current rep

Method used

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  • Sex trapping cage with viruses and method for preventing and treating lepidoptera pests by using sex trapping cage
  • Sex trapping cage with viruses and method for preventing and treating lepidoptera pests by using sex trapping cage
  • Sex trapping cage with viruses and method for preventing and treating lepidoptera pests by using sex trapping cage

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] Select 1.8-meter-wide yurt mosquito nets, put 15 pairs of male and female insects in each mosquito net, and prepare 5 × 10 with 5% honey water. 7 PIB / mL Spodoptera litura nuclear polyhedrosis virus (Xu Shulan, Tang Li. Production technology of 30 billion PIB / g Spodoptera litura nuclear polyhedrosis virus parent drug [J]. Guangdong Agricultural Science, 2011, 38(16): 68-70) solution, the lure core is a special lure core for Spodoptera litura, and the test is carried out according to the following four treatments: (a) no trapping cage + 5% honey water, (b) no trapping cage + virus feeding solution, (c) Trap cage + 5% honey water, (d) trap cage + virus feeding solution, each treatment was repeated three times, after treatment, the number of eggs laid by females was observed and recorded every day until the females laid eggs, and the males captured by the traps were recorded at the same time. quantity. The egg mass of each treatment and each repetition ...

Example Embodiment

[0034] Embodiment 2

[0035] Choose a tobacco field with an area of ​​about 50 mu. The tobacco seedling period is one month after transplanting. Two sex pheromone trapping cages with Spodoptera litura polyhedrosis virus liquid are placed per mu. The bottom of the cage is about 1.2 meters above the ground. Make up the virus solution once a day (5×10 7 PIB / mL), a tobacco field 1 km away from the experimental area was used as a control treatment area. 5 points were randomly investigated in the experimental area and the control area, and 5 tobacco plants were investigated in each point. The number of Spodoptera litura larvae was investigated before treatment and 10 days, 20 days and 30 days after treatment, and the average population decline rate and control effect were calculated according to formulas (1) and (2).

[0036]

[0037]

[0038] It can be seen from Table 2 that the trapping cage with the virus has a good control effect on Spodoptera litura in tobacco fields, a...

Example Embodiment

[0041] Embodiment 3

[0042]Choose a paddy field with an area of ​​about 50 mu, the rice growing period is the tillering stage, and each mu are planted with 2 cabbage Spodoptera polyhedrosis virus (3 billion PIB / mL suspension agent, produced by Jiangxi Xinlong Biotechnology Co., Ltd.) liquid. The sex pheromone trapping cage, the lure core is a special lure core for the diploid borer, the bottom of the cage is flat on the level of the rice leaf tip, and the virus solution (5 × 10) is replenished every 10 days. 7 PIB / mL), a paddy field 1 km away from the experimental area was used as a control treatment area. 5 points were randomly surveyed in the experimental area and the control area, and each point was surveyed 35m 2 , census the dead-hearted plants caused by Dilophos chinensis, and calculate the relative control effect. The calculation formulas are shown in (3) and (4). Before treatment and 10 days, 20 days and 30 days after treatment, the rice leaf roller was investigated...

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Abstract

The invention discloses a sex trapping cage with viruses and a method for preventing and treating lepidoptera pests by using the sex trapping cage. The trapping cage comprises a sunscreen film cover,a hooks, a metal ring buckle, a conical net and a virus carrying basin. The hook is connected with an upper cover frame. The metal ring buckle is suspended at the bottom of the upper cover frame. Thetwo ends of the conical net are fixed with the metal ring buckle and a lower cover frame correspondingly. The virus carrying basin is suspended at the bottom of the lower cover frame, and a sponge block placed in the virus carrying basin is soaked with virus liquid. A lure is suspended at the bottom of the metal ring buckle. During the growth period of crops, more than two sex trapping cages withviruses are arranged in each mu of field, lepidoptera pests can be effectively controlled, the application amount of chemical pesticide is reduced, and the pest control cost is remarkably reduced. Twopest control measures of sex pheromone trapping and virus infection are organically combined, the mating probability of male and female pests is reduced, the male pests can feed virus liquid into bodies, viruses are vertically spread in populations after the contaminated male pests mate with the female pests, and accurate control over physical and biological control is achieved.

Description

technical field [0001] The invention relates to the technical field of pest control, in particular to a virus-carrying sexual trapping cage and a method for controlling lepidopteran pests by using the same. Background technique [0002] Lepidoptera pests are important pests in agricultural production. They gnaw on stems and leaves, causing severe nicks and even bare stems of plants, resulting in reduced yields and failures of crops. For the control of Lepidoptera pests, the current growers still mainly use chemical control, and the frequency of pesticide application is usually 5-7 days, which can easily cause excessive pesticide residues and decline in crop quality. It has been reported that lepidopteran pests have developed resistance to major control agents such as abamectin, beta-cypermethrin, emamectin benzoate, chlorantraniliprole, and spinosad. How to achieve the purpose of reducing chemical pesticides and effectively using other comprehensive prevention and control m...

Claims

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Application Information

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IPC IPC(8): A01M1/02A01M1/20
CPCA01M1/023A01M1/2016
Inventor 蒲小明林壁润杨祁云沈会芳张景欣孙大元刘平平
Owner PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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