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A kind of method of biological control invasive pest coconut weaver moth

A technology of coconut weaver moth and pests, which is applied in the field of biological control of invasive pests coconut weaver moth, can solve problems such as not being able to achieve good control effects, and achieve the effects of enhancing pest control effects, increasing the spread range, and improving competitiveness

Active Publication Date: 2021-06-15
ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Theoretically, the use of sterile technology in Hainan Island in the initial stage of invasion is expected to eradicate the coconut weaver moth, but there are few studies on the irradiation sterile technology of the coconut weaver moth, and conventional irradiation methods cannot achieve good control effects , this field needs in-depth research and development to find an irradiation sterility method suitable for the coconut weaver moth

Method used

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  • A kind of method of biological control invasive pest coconut weaver moth
  • A kind of method of biological control invasive pest coconut weaver moth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for biological control of the invasive pest Coco moth, comprising the following steps:

[0027] Irradiate the early pupae of the male cocoon weaver moth with radiation source cobalt 60, the irradiation dose is 100Gy, and the irradiation time is 1 hour; place the pupae at a temperature of 25-27°C and a relative humidity of 70%±10%. , after the pupae emerge into adults, transfer the adults into glass tubes (put 2 to 3 adults in each glass tube) and raise them with irradiated coconut leaves for 1 day to obtain sterile males (get an appropriate amount of male worms and continue to adopt conventional conditions to raise, for the adult life expectancy and flight ability test); Then, according to the monitoring of the number of female adults of the coconut weaver moth in the forest, the male worms after the sterile treatment are released according to the male-to-female ratio of 1:1. The male worms after the sterile treatment were released once every 7 days, and releas...

Embodiment 2

[0030] A method for biological control of the invasive pest Coco moth, comprising the following steps:

[0031] Put the early pupae of the male cocoon weaver moth into a plastic box, and irradiate with radiation source cobalt 60, the irradiation dose is 200Gy, and the irradiation time is 2 hours; place the pupae at a temperature of 25-27°C and a relative humidity of 70 % ± 10% under the condition, after the pupa eclosion into adults, the adults were transferred to glass tubes (putting 2 to 3 adults in each glass tube) and raised for 2 days with the coconut old leaves after the irradiation treatment. Then, according to the monitoring of the number of female adults of Coconut weaver moth in the forest, release the males after the sterile treatment by the ratio of male to female at 1:3, release the males after the sterile treatment every 10 days, and release 5 Second-rate.

[0032] The treatment method of the old coconut leaves is as follows: the old coconut leaves are irradiate...

Embodiment 3

[0034] The difference between embodiment 3 and embodiment 1 is:

[0035] The treatment method of the old coconut leaves is as follows: the old coconut leaves are irradiated with the radiation source cobalt 60, the irradiation dose is 0.5kGy, and the irradiation time is 1h.

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Abstract

The invention discloses a method for biologically controlling the invading pest Coconut weaver moth. The initial pupa of the coconut weaver moth male is irradiated with radiation source cobalt 60, the irradiation dose is 100-200Gy, and the irradiation time is 1-2 hours Place the pupa at a temperature of 25 to 27°C and a relative humidity of 70% ± 10%. After the pupa emerges as an adult, the adult is transferred to a glass tube and raised with irradiated coconut old leaves to obtain sterile treatment Then, according to the monitoring of the number of adult females of the weaver moth in the forest, the males after the sterile treatment were released. Through the method of the present invention, the lifespan of the sterile adults is increased to 8 days, so that the sterile males have more time to search for the females, which is conducive to the performance of the males. In addition, the flight speed of the 5-day-old sterile males reaches 0.62-0.73m / s, The total flight time reaches 4345-7859s, and the total flight distance reaches 261-550m, which effectively increases the spread range of sterile adults, improves the competitiveness of sterile males and fertile males in the forest, and then enhances the effect of pest control, and the population decline rate reaches 75-500m 91%.

Description

technical field [0001] The invention relates to a method for biologically controlling the invading pest Cocoa moth, and belongs to the technical field of pest control. Background technique [0002] SIT uses different means to make pests sterile and unable to produce offspring, so as to achieve the purpose of controlling pests (Dyck et al.2005). SIT aims to reduce the reproduction number of target pests without affecting non-target organisms. It is the most environmentally friendly control strategy and a sustainable pest control strategy. Unlike traditional biological control, the SIT does not introduce new species that are capable of breeding, and therefore does not need to consider species control requirements. Radiation sterility is a common measure of the Sterile Insect Technique. Through radiation, sterile males are obtained, and the sterile males are released to find females to mate on their own, but produce invalid eggs, block the breeding and proliferation of the po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G13/00
Inventor 吕宝乾符兵何杏唐继洪卢辉彭正强吴琦琦
Owner ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI