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Method for preventing citrus red mites

A technology of citrus spider mite and citrus, which is applied in botany equipment and methods, animal repellents, acaricides, etc., can solve the problems of poor quick-acting and different action mechanisms, so as to reduce the amount per mu, prolong the duration, Reduce the effect of pesticide residues

Inactive Publication Date: 2015-09-02
杨新兰
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Flubenzuron is widely used on citrus, grapes, soybeans, fruit trees, royal rice and coffee to control phytophagous mites (epiphagous mites, breviparous mites, panonychia, rust mites, red spider mites, etc.) and many other pests , and has a good long-lasting effect, but poor quick-acting
[0006] The mechanism of action of Abamectin, Hexythiazox, and Flubenzuron is different from each other. The acaricidal composition with Abamectin, Hexythiazox, and Flubenzuron as active ingredients is used for the control of citrus spider mites. No relevant reports yet

Method used

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  • Method for preventing citrus red mites
  • Method for preventing citrus red mites
  • Method for preventing citrus red mites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: Toxicity determination of avermectin, hexythiazox and flufenuron and different ratios to Tetranychus urticae

[0013] The test method refers to the "People's Republic of China Agricultural Industry Standard NY / T1154.12-2006". Female adults of Tetranychus urticae collected from the field were reared indoors for 30 generations, and the female adults with uniform growth were selected as the test insects. The citrus seedling method is adopted, that is, 50-60 mites of whole claw mites are inoculated on small pots of citrus seedlings, and the base number is checked after 1 day. After the dead mites are picked out, live adult mites are added, and the number of mites per treatment is kept at about 50. Spray the seedlings with mites using a spray tower, move them to culture at 25°C and 90% relative humidity, check after 15 days, record the number of survivors, use DPS data processing software for statistical analysis, calculate the regression curve, and calculate the ...

Embodiment 2

[0023] Embodiment 2: the preparation method of 8% abamectin·hexythiazox·flubenzuron microemulsion and medicament field test

[0024]

[0025] According to the formula requirement, the amount of the above components is completely dissolved and mixed uniformly, and then stirred to prepare 8% abamectin·hexythiazox·flubenzuron microemulsion.

[0026] The preparation of this example is used to control citrus two-spotted spider mite, and it is uniformly sprayed by conventional methods, and the dripping water on the leaves is used as the standard. There were more spider mites in the field when the pesticide was applied. A total of 4 treatments were set up in the experiment, and each treatment was repeated 4 times. Investigate the number of insect populations in the field before spraying, and investigate the number of residual live insects 1 day, 7 days, and 21 days after spraying. During the survey, check 2 plants in each plot, and check 5 leaves of each plant in 4 directions fro...

Embodiment 3

[0034] Example 3 Preparation method of 20% abamectin·hexythiazox·flubenzuron aqueous emulsion and field test of medicament

[0035] Weigh 2% abamectin, 6% hexythiazox, 12% flubenzuron, 7% N, N dimethylformamide (emulsifier), 3% concentrated milk 500 # (emulsifier), lignosulfonate 2% (dispersant), 0.08% silicone oil (defoamer), deionized water added to 100%, mixed to obtain 20% abamectin hexythiazox fluoride Urea water emulsion.

[0036] This embodiment preparation is used for preventing and treating citrus two-spotted spider mite, and field two-spotted spider mite is more during spraying, test establishes 4 treatments altogether, each handles 4 repetitions, adopts the spraying method identical with embodiment 2 field test, Insect survey methods and drug efficacy calculation methods.

[0037] The test results are shown in Table 3.

[0038] Table 3 Field test table of 20% abamectin·hexythiazox·flubenzuron aqueous emulsion against Tetranychus urticae

[0039]

[0040] Fiel...

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PUM

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Abstract

Disclosed is a method for preventing citrus red mites. The method includes: blending abamectin, hexythiazox and flufenoxuron according to the effective constituent weight ratio of 1-2:3-8:5-10, then adding water for dilution, and evenly spraying the mixture on citrus leaves. The method has the significant advantages that due to different action mechanisms of the abamectin, hexythiazox and flufenoxuron, obvious synergetic effect is achieved by rational mixing, pesticide effect is increased greatly, pesticide consumption per mu is lowered, and accordingly harmful effect on environment and pesticide residue are reduced, duration of pesticide effect is prolonged, and the defect that the single agent is incapable of preventing and covering the entire growth cycle of red mites is overcome.

Description

technical field [0001] The invention relates to a method for controlling citrus spider mite. Background technique [0002] Because of its strong reproductive ability, short life cycle and frequent occurrence all year round, citrus spider mite is very easy to develop resistance to acaricides and the efficacy of the drug is significantly reduced. At present, chemical agents are used to control citrus spider mite. There are still the following difficulties to be overcome: the drug has a short duration of action, and although it can achieve a good effect after application, it often breaks out again after three to five days; the drug is highly toxic and the drug residue is serious. [0003] Abamectin, a macrolide disaccharide compound, has contact killing and stomach poisoning effects on insects and mites, and has no systemic effect, but has a strong penetrating effect on leaves and can kill insects and mites under the epidermis. For pests, abamectin can effectively control adul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/38A01P7/02A01N47/34A01N43/90
Inventor 杨新兰
Owner 杨新兰
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