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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 reports mainly use powder as the virus carrier, while the piercing-sucking mouthparts are the main ones. Lepidoptera adults cannot feed and enter the body, nor can they achieve vertical transmission within the virus population

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

Embodiment 1

[0029] Choose a yurt mosquito net with a width of 1.8 meters, put 15 pairs of male and female insects that have emerged for one day in each mosquito net, and prepare 5 × 10 worms with 5% honey water. 7 Spodoptera litura nuclear polyhedrosis virus with PIB / mL (Xu Shulan, Tang Li. Production technology of 30 billion PIB / g Spodoptera litura nuclear polyhedrosis virus master drug[J]. Guangdong Agricultural Science, 2011,38(16): 68-70) liquid, the lure is a special lure 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 liquid, (c) Trapping cage + 5% honey water, (d) trapping cage + virus feeding liquid, each treatment was repeated three times, after treatment, observe and record the amount of eggs laid by females every day until the females lay eggs, and record the males captured by trapping cages at the same time quantity. Take the egg masses of each treatment ...

Embodiment 2

[0035] Choose a tobacco field with an area of ​​about 50 mu. The tobacco seedling stage is one month after transplanting. Two sex pheromone trapping cages with Spodoptera litura polyhedron virus liquid are placed per mu. The bottom of the cage is about 1.2 meters from the ground, and every 10 Replenish the virus solution once a day (5×10 7 PIB / mL), the tobacco field 1 km away from the test area was used as the control treatment area. Five points were randomly investigated in the test area and the control area, and five 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 reduction 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 cages with the virus have a good control effect on Spodoptera litura, and the control effects are 87.01...

Embodiment 3

[0042]Select an area of ​​about 50 mu of paddy fields, the rice growth period is the tillering stage, and each mu is planted with 2 pods of cabbage spodoptera polyhedrosis virus (3 billion PIB / mL suspending agent, produced by Jiangxi Xinlong Biotechnology Co., Ltd.). The sex pheromone trapping cage, the lure core is the special lure core for the rice borer, the bottom of the cage is level with the rice leaf tip level, and the virus solution is replenished once every 10 days (5×10 7 PIB / mL), the paddy field 1 km away from the test area was used as a control treatment area. Randomly investigate 5 points in the test area and the control area, and investigate 35m at each point 2 , census the dead plants caused by Chilo borer damage, and calculate the relative control effect, the calculation formula is shown in (3) and (4). The rice leaf roller was investigated before and 10 days, 20 days and 30 days after the treatment, and the population reduction rate and control effect were ca...

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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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