Field tank-mixed pesticide for rice pest control

A pest control and field technology, applied in the field of tank-mixed pesticide synergistic formulations in the field, can solve the problems of lack of scientific theoretical basis, failure to achieve synergistic effects, and easy occurrence of phytotoxicity, so as to reduce the risk of pollution, overcome the generation and The effect of developing and overcoming pest resistance

Inactive Publication Date: 2017-11-17
INST OF PLANT PROTECTION FAAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the current circumstances, the mixed use of pesticides by agricultural producers is arbitrary, lacks scient

Method used

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  • Field tank-mixed pesticide for rice pest control
  • Field tank-mixed pesticide for rice pest control
  • Field tank-mixed pesticide for rice pest control

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1: Indoor Toxicity Determination of the Mixture of Shalidan and Pyripoxyfen

[0017] Refer to NY / T 1154.14-2008 pesticide indoor biological activity determination method, using rice leaf dipping method for indoor synergistic biological activity determination, each treatment is repeated 4 times, each concentration treatment with 2nd instar nymphs of rice thrips 10-15 After 48 hours of treatment, check the mortality of test insects in each treatment, and calculate the corrected mortality. Use the probability value analysis method to calculate the virulence regression equation and lethal concentration LC of each drug treatment. 50 , According to Sun Yunpei's method, calculate the CTC of the drug compounding co-toxicity coefficient.

[0018] Table 1 shows the virulence test results of the mixed pair of Shachdan and pyriproxyfen on rice thrips nymphs. It can be seen from the table that the co-toxicity coefficients of the mixed agents are all greater than 100, indicating t...

Example Embodiment

[0021] Example 2: Tank mixing stability of two pesticide formulations

[0022] Table 2 The stability of two pesticides in different formulations

[0023]

[0024] It can be seen from Table 2 that the soluble powder (SP) and aqua (AS) with pyriproxyfen as the active ingredient can be mixed with water emulsion (EW) and microemulsion (ME) with pyriproxyfen as the active ingredient. And the water emulsion (EW) with the effective ingredient of Insecticide can be mixed with emulsifiable concentrate (EC), water emulsion (EW) and microemulsion (ME) with pyriproxyfen as the effective ingredient.

Example Embodiment

[0025] Example 3: Field-barrel-mixed efficacy and synergistic test of Shachongdan and pyriproxyfen

[0026] Select the group with the highest co-toxicity coefficient of Dimethophan and pyriproxyfen (mixing ratio 6:1), and then carry out the field control experiment of barrel-mixed pesticides on rice thrips in accordance with the pesticide field efficacy test guidelines of the Ministry of Agriculture ( The water consumption per mu is 45 kg). According to the number of pests before and after application in the treatment area and the control area, calculate the population reduction rate and corrective control effect.

[0027] Table 3 Field control effect of Shachongdan and pyriproxyfen (6:1) on rice thrips

[0028]

[0029] Table 3 shows the control effects of Shachongdan and pyriproxyfen on rice thrips. It can be seen from Table 3 that the control effect after barrel mixing is significant, reaching more than 85%, and the amount of active ingredients used is significantly reduced, achi...

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Abstract

The invention discloses a synergic formula of field tank-mixed pesticide for rice pest control. The field tank-mixed pesticide is formed by mixing two pesticide preparations, and effective components of the two pesticide preparations are monosultap and pyriproxyfen respectively; the weight ratio of monosultap to pyriproxyfen is 3:9-1:3, and the optimal synergic ratio is 6:1. According to the field tank-mixed pesticide, the rapid poisoning effect of monosultap on adult pests and pest larvae (nymphs) and the sustained poisoning effect of pyriproxyfen on eggs and newly-hatched larvae (nymphs) are fully exerted, rice pests can be rapidly and efficiently killed to prevent incidence and damage, the field control effect can be significantly improved, and the safety of rice grain production can be ensured; besides, the pesticide usage amount and usage frequency can be effectively reduced, the control cost is lowered, and the production benefit is increased; meanwhile, pollution caused by pesticide to the paddy eco-environment is reduced, and thus the field tank-mixed pesticide has significant economic, social and ecological benefits.

Description

technical field [0001] The invention belongs to the technical field of prevention and control of agricultural diseases and insect pests, and in particular relates to a field tank-mixed pesticide synergistic formula for the prevention and control of rice pests. Background technique [0002] Monosultap, chemical name: 2-dimethylamino-1-sodium thiosulfonate-3-thiosulfonate propane, molecular formula C 5 h 12 NNa 2 o 6 S 4 , molecular weight 333.4016. Disultap is a kind of nereistoxin insecticide, which has gastric poisoning, contact killing and systemic conduction effects, and also has certain fumigation effect, and has good insecticidal activity against various agricultural pests. [0003] Pyriproxyfen, also known as pyriproxyfen, chemical name: 4-phenoxyphenyl (RS)-2-(2-pyridyloxy)propyl ether, molecular formula C 20 h 19 NO 3 , with a molecular weight of 321.3698, a phenyl ether insect growth regulator, is a juvenile hormone-type chitin synthesis inhibitor, with high...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N41/02A01P7/04
CPCA01N41/02A01N43/40A01N2300/00
Inventor 邱良妙占志雄刘其全赵建伟
Owner INST OF PLANT PROTECTION FAAS
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