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Biological control methods of tarsus mites

A technology of tarsus mites and larvae, applied in the field of biological control, can solve the problems of increasing control costs, polluting the environment, and hidden dangers of fruit safety

Active Publication Date: 2021-07-06
CHANGLI INST OF POMOLOGY HEBEI ACADEMY OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because tarsus tarsus mites enter the fruit bag after apple bagging, settle in the calyx of the fruit, and feed on the calyx depression, it has strong concealment and is difficult to control. In order to control the pest, a large number of pesticides have been applied many times , which not only increases the cost of prevention and control, but also pollutes the environment and brings safety hazards to the fruit.

Method used

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  • Biological control methods of tarsus mites
  • Biological control methods of tarsus mites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The biological control method (indoor test) of embodiment 1 disorder tarsus mite

[0020] 1. Test materials

[0021] The natural enemy of the test, Neoseius pastereii, was collected from Changli County, Hebei Province, and was subcultured indoors with the acaroid mite as food. The tarsus mites were collected from apple trees in Changli County, Hebei Province.

[0022] Test chamber setup: The test chamber is composed of a lower plexiglass plate and an upper slide glass. The length, width and height of the plexiglass plate are 50mm, 25mm and 5mm respectively, and a round hole with a diameter of 16mm and a depth of 4mm is punched in the center of it to form a certain space; The lid prevents escape of the test worms. During the test, a drop of PDA medium was dripped into the small chamber to maintain the humidity in the small chamber, and the test insects were put in, covered with glass slides and clamped with long tail clips.

[0023] 2. Test method

[0024] 2.1 Preda...

Embodiment 2

[0036] The biological control method (field test) of embodiment 2 disorder tarsus mite

[0037] Select an apple orchard in Changli County where black spot disease often occurs, and 20 days before fruit tree bagging (May 18, 2017), choose to use a mixture of 400 times of mineral oil emulsion and 4000 times of spirodiclofen to spray the whole garden. The number of pest mites is reduced, and the use of pesticides after the release of natural enemies is avoided. Select 10 apple trees (the average diameter of the trunk is about 18cm) in the orchard, and on June 2, 2017, check the number of tarsus mite populations 5 days before bagging. If the number of tarsus mite populations is ≤2 per louver, 5 trees are randomly selected, and 1,500 Neoseius mites are released from each tree, and 5 trees are treated without any treatment. Fruits were checked for the occurrence of black spot disease when they were harvested. The results showed that the diseased fruit rate of fruit trees with blac...

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Abstract

The invention provides a biological control method of tarsus mites, which is to release Neoseius pasteurii on fruit trees as a natural enemy, prey on eggs, larvae, quiescent mites or adult mites of tarsus mites, and carry out pest control. prevention. The present invention utilizes Neoseius pastereii which has a strong ability to prey on the parasitoid mite, and uses Neoseius pasterei to carry out biological control on the parasitoid mite, which can greatly reduce the amount of pesticides used and significantly improve the quality of the fruit. It conforms to the national policy of reducing the use of pesticides, and increases the income of fruit farmers.

Description

technical field [0001] The invention relates to the technical field of biological control, in particular to a method for biological control of tarsus mites. Background technique [0002] Since the popularization of bagging technology, "bagged apple calyx depression black spot disease" has occurred in Gansu, Shaanxi, Liaoning, Shandong, Hebei, Yunnan and other places successively. The incidence rate is 5-6% for mild cases and 60% for severe cases % or even 90%, with an average of more than 20%. Caused great economic loss to fruit production and fruit grower. Tarsonemus confusus Ewing belongs to the subclass Acari, Acariformes, Tarsonemidae, tarsonemidae, genus Tarsonemus, and has been proven to be the causative factor of bagging apple black spot disease, widely distributed. around the world. Because tarsus tarsus mites enter the fruit bag after apple bagging, settle in the calyx of the fruit, and feed on the calyx depression, it has strong concealment and is difficult to c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G13/00A01K67/033
CPCA01G13/00A01K67/033
Inventor 于丽辰李立涛焦蕊贺丽敏许长新张林林刘金利
Owner CHANGLI INST OF POMOLOGY HEBEI ACADEMY OF AGRI & FORESTRY SCI