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Method for obtaining large number of campoletis chorideae uchida wild populations

A technology of cotton bollworm and bee, which is applied in the fields of trapping or killing insects, applications, animal husbandry, etc. It can solve the difficulties of natural populations, can only rely on luck, cannot meet the requirements of large-scale indoor propagation and uninterrupted rejuvenation, etc. problem, to achieve the effect of satisfying the proliferation and population rejuvenation, and increasing the parasitic rate

Active Publication Date: 2020-11-03
HUNAN ACAD OF FORESTRY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is very difficult to collect the natural populations of the cotton bollworm A. dentata in the wild. Most of them can only be lucky, and the amount collected at one time is limited, which is far from meeting the needs of large-scale indoor expansion and uninterrupted rejuvenation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides a method for obtaining a large number of field populations of the cotton bollworm A. chrysalis, using the newly hatched larvae or the second instar larvae of the cotton bollworm to release before the tobacco leaves bloom for a long time to lure the cotton bollworm. The specific steps The method is: before the tobacco leaves flourish for a long time, gently brush the first hatched larvae or second instar larvae of the cotton bollworm on the tender leaves of the tobacco leaves with a brush to lure the A. Go to the collection 6 days after the newly hatched larvae or the second instar larvae. When collecting each time, pay attention to the upper part of the young leaves and the back of the leaves. Collect once every other day. The amount of release can be determined according to the demand, and cotton bolls are collected manually within a fixed time limit. Cocoons of wild populations of A. cerevisiae.

[0031] The cocoons of the wild population of A...

Embodiment 2

[0034] This embodiment provides a method for obtaining a large number of wild populations of the cotton bollworm A. chrysalis, using the newly hatched larvae or the second instar larvae of the cotton bollworm to release before the tobacco leaves flourish for a long time to lure the cotton bollworm A. chrysalis. The specific steps Method: Before the tobacco leaves are flourishing for a long time, gently brush the newly hatched larvae or the second instar larvae of the tobacco budworm on the tender leaves of the tobacco leaves with a brush, and attract the cotton bollworm to lay eggs on the newly hatched larvae or the second instar of the tobacco budworm. On the primary larvae, go to the collection 8 days after releasing the newly hatched larvae or the second-instar larvae of the tobacco budworm. When collecting each time, focus on the middle and upper tender leaves and the back of the leaves. Collect once every other day. The release amount can be determined according to the dema...

Embodiment 3

[0037] This embodiment provides a method for obtaining a large number of field populations of A. cotton bollworm, A. litura, by releasing the newly hatched larvae or second instar larvae of Spodoptera litura before the long-term growth of corn leaves to lure A. cotton bollworm. The specific steps are: before the corn leaves flourish for a long time, gently brush the first hatched larvae or second instar larvae of Spodoptera litura on the tender leaves of corn leaves with a brush, and lure A. litura to lay eggs on Spodoptera litura. On the newly hatched larvae or the second instar larvae, collect them 8 days after releasing the first hatched larvae or the second instar larvae of Spodoptera litura. When collecting each time, pay attention to the upper part of the young leaves and the back of the leaves, and collect them every other day. According to the needs The release amount can be determined, and the cocoons of the wild population of A. helicoverpae are collected manually wit...

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PUM

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Abstract

The invention discloses a method for obtaining a large amount of campoletis chorideae uchida wild populations. The method uses lepidoptera larvae to be manually released before tobacco leaves or cornleaves grow vigorously to trap campoletis chorideae uchida, and comprises the following specific steps of slightly brushing the lepidoptera larvae on tender leaves of the tobacco leaves or the corn leaves by using a writing brush before the tobacco leaves or the corn leaves grow vigorously; and trapping the campoletis chorideae uchida to lay eggs on the lepidoptera larvae, and manually collectingwild population cocoons of the campoletis chorideae uchida within a fixed time limit. The method further comprises the step that attractants are smeared on the tender leaves of the tobacco leaves or the corn leaves at the same time, and inducers are one or a mixture of more of host plant volatile matter, nectariferous plant extracts and parasitic information gland compounds. Compared with the prior art, the method for obtaining a large number of campoletis chorideae uchida wild populations provided by the invention can obtain a large number of populations within the fixed time limit, and is used for indoor propagation and rejuvenation.

Description

technical field [0001] The invention relates to the technical field of collecting the A. chinensis of the cotton bollworm, and more specifically relates to a method for obtaining a large number of wild populations of the A. chinensis of the cotton bollworm. Background technique [0002] Campoletis chlorideae Uchida belongs to Hymenoptera Hymenoptera Ichneumonidae. It is distributed worldwide and widely distributed in the Yangtze River Basin and the Yellow River Basin in my country. The Uchida has a wide host spectrum, strong parasitic ability, and can parasitize harmful The lepidopteran pests of various crops, especially the worldwide economic pest Helicoverpa armigera (Hübner), have remarkable control effects and are important natural enemy resources. [0003] Cotton bollworm larvae mainly parasitize the young larvae of the cotton bollworm, lay eggs in the body of the larvae, and their offspring develop with the growth of the larvae. At present, it is very difficult to coll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033A01M1/02
CPCA01K67/033A01M1/02
Inventor 邓婉李密袁冬菊伍绍龙谭琳钟武洪何振喻锦秀谢逸菲
Owner HUNAN ACAD OF FORESTRY
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