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Method for controlling tetranychus cinnabarinus

A red spider and plant technology, applied in the field of red spider prevention and control, can solve problems such as difficult to achieve results, environmental pollution, air pollution, etc., and achieve the effects of reduced amount, excellent trapping effect, and best prevention and control effect.

Pending Publication Date: 2020-08-14
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the special bio-ecological characteristics of spider mite, a single control method is often difficult to achieve the desired effect
In addition, spraying chemical pesticides on garden plants will not only pollute the air and bring about environmental pollution problems, but the subtle effects of pesticides and their metabolites in animals and humans may be potentially harmful and have adverse effects

Method used

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  • Method for controlling tetranychus cinnabarinus
  • Method for controlling tetranychus cinnabarinus
  • Method for controlling tetranychus cinnabarinus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] During the peak period of red spider occurrence, the damage of red spiders to Rosaceae, Compositae, Malvaceae, Oxalidaceae and Cactus were investigated and compared respectively. The results are shown in Table 1. During the active period of red spiders, other The severity of occurrence on sorrel was higher than that of other susceptible species.

[0025] Table 1 Comparison of damage degree of spider mite on different seedling plants

[0026]

[0027]

[0028] Ⅰ—the leaves have no obvious changes;

[0029] Ⅱ—Small yellowish-white to off-white spots appear from both sides of the main vein of the petiole on the back of the leaf;

[0030] Ⅲ—The leaves turn pale gray, and the leaves turn yellow and lose green;

[0031] Ⅳ—The leaves are scorched and fall off, the plants are short and grow slowly.

[0032] In order to further confirm the wood sorrel strains preferred by red spiders, through indoor experiments (temperature 25-30°C, humidity 70-75%, light L:D=14:10), 12...

Embodiment 2

[0043] Under indoor conditions (temperature 25-30°C, humidity 70-75%, light L:D=14:10), on each pot of rose (pot diameter: 25.0cm; plant height: 30.0-40.0cm), connect the 50 red spiders, 20 pots of plants were arranged in a row, a total of 5 rows, and one of the three kinds of wood sorrel (red flower, yellow flower and purple leaf) was used as the trapping plant, and the surrounding type, strip type and There are 3 chessboard layout methods, set the distance from the rose 0m (docking), 0.5m, 1.0m, 1.5m and 2.0m, and replace the new ones on the 2nd, 4th, 6th, 8th and 10th days respectively Potted wood sorrel, and surveyed the total number of potted red spiders. The results are shown in Table 4. There was no significant difference in the number of red spiders under the surround, strip and checkerboard layouts. However, in actual operation, the strip type is simpler than the other two layouts, and requires fewer trapping plants. Therefore, a striped layout may be preferred. Un...

Embodiment 3

[0056] Insert 1000 red spiders on 5 pots of rose potted plants, insert 100, 40, 20, 10 and 5 Chinese lacewings respectively (the ratio of benefit to harm is 1:10, 1:25, 1:50 respectively , 1:100 and 1:200), after 24 hours, the number of remaining red spiders was counted, and the predation efficiency of Chinese lacewings on red spiders was studied. The results are shown in Table 7. The number of remaining red spiders decreased continuously with the increase of the number of Chinese lacewings. When the benefit-damage ratio of Chinese lacewings and red spiders was 1:50, the number of remaining red spiders reached the minimum value. The number of lacewings increased, but the number of red spiders did not decrease significantly.

[0057] Table 7 Effects of different benefit-to-damage ratios on the control efficiency of Chinese lacewing

[0058]

[0059]

[0060] Note: The values ​​in the table are mean ± standard error, and different capital letters indicate significant diff...

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Abstract

The invention provides a method for controlling tetranychus cinnabarinus and relates to the technical field of biological control for the tetranychus cinnabarinus. According to the method, through combined action of creeping oxalis and chrysopa sinica, the tetranychus cinnabarinus of garden plants are biologically controlled. The creeping oxalis can massively trap the tetranychus cinnabarinus, andthe potted creeping oxalis which has trapped the tetranychus cinnabarinus can be further used as a natural enemy source feeding nursery of chrysopa sinica adults, cannot pollute the environment and is safe to natural enemies; the biological diversity of an ecological system is improved; as the feeding nursery of the natural enemies, the potted creeping oxalis can promote natural control for the natural enemies, so that use of insecticides is substantially reduced, the cost is saved and the benefits are increased. When the method is used for controlling the tetranychus cinnabarinus, particularly, when the flower watching stage of the creeping oxalis and the spawning period of the tetranychus cinnabarinus coincide, a best trapping effect on the tetranychus cinnabarinus on the garden plantscan be realized, and a better control effect on the tetranychus cinnabarinus can be realized.

Description

technical field [0001] The invention belongs to the technical field of insect biological control, and in particular relates to a method for preventing and controlling red spiders. Background technique [0002] Red spider mite (Tetranychus cinnabarinus), also known as spider mite, is very small, less than 1.0mm, round or oval, orange or reddish brown, widely distributed, and has miscellaneous feeding habits. According to reports, more than 110 kinds of plants have been harmed to varying degrees by spider mites, and the range of hosts is still expanding. The garden host plants of red spiders are mainly distributed in Rosaceae (such as rose Rosa chinensis, Begonia Malus spectabilis), Compositae (such as chrysanthemum Dendranthema Morifolium), Malvacaceae (such as Fuso Hibiscus rosa-sinensis), Oxalis (such as Oxalis Oxalis corniculata) and cactus (such as Zygocactus truncactus). [0003] Spider mites usually use adult mites and nymphs to suck juice, spin silk, make webs and la...

Claims

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Application Information

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IPC IPC(8): A01G13/00A01K67/033A01M1/00A01M1/02A01N65/00A01N65/08
CPCA01G13/00A01K67/033A01M1/00A01M1/02A01N65/00A01N65/08
Inventor 张娟黄俊唐娅媛李明江
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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