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Insecticidal composition containing matrine and chromafenozide

An insecticidal composition, the technology of fenfenozide, which is applied in the field of pesticide application, can solve the problems of increased resistance to rice leaf roller and high drug cost, reduce the frequency of application and dosage, improve the control effect, and reduce the toxicity. Significant effect of force synergy

Inactive Publication Date: 2017-04-19
GUANGXI NANNING YITU BIOLOGICAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an insecticidal composition containing matrine and cyfenozide to solve the problems of increased resistance and high drug cost of the rice leaf roller due to single frequent use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Indoor Toxicity Determination of Cyclofenozide, Matrine and Their Mixtures to Rice Roller Borer

[0019] Insects tested: Cnaphalocrocis medialis (Guenee)

[0020] Test method: refer to "People's Republic of China Agricultural Industry Standard NY / T1154.7-2006". Oviposition of female moths of the rice leaf roller collected from the field. The female worms were released into a cylindrical cage, the inner wall was lined with a layer of wax paper, the outer cover was covered with black cloth, and fed with 10% honey water. The next day, the egg masses were cut out with the wax paper and placed in a petri dish to keep moist, and were reared with cultivated fresh rice leaves after hatching. The temperature of the insect culture room is (28±1)°C, and the photoperiod is 16(L):8(D). The 2nd instar larvae with uniform growth were picked out and inserted into a 12 cm diameter petri dish placed with fresh rice leaves. Put 10 rice leaf rollers into each dish, and each ...

Embodiment 2

[0029] Example 2: 2.0% Cyclofenozide·Matrine Suspending Concentrate (Cyclofenozide: Matrine = 3:1)

[0030] Weigh 1.5% of cyclofenozide, 0.5% of matrine, 3.5% of alkylaryl polyoxypropylene polyoxyethylene ether (dispersant), 5.0% of sodium polynaphthaldehyde sulfonate (wetting agent), and Glycol 2.5% (antifreeze agent), xanthan gum 0.8%, silicone 0.3% (defoamer), and deionized water to make up to 100%.

[0031] The preparation method of Example 1-2 is as follows: mix each component uniformly according to the ratio of the formula, grind and high-speed shear to obtain an insecticidal composition containing cyfenozide·matrine, and the dosage form is a suspension concentrate.

Embodiment 3

[0032] Example 3: 3.0% Cyclofenozide·matrine aqueous emulsion (Cyclofenozide: Matrine = 5:1)

[0033] Take by weighing 2.5% of tebufenozide, 0.5% of matrine, 2% nonylphenol polyoxyethylene (EO=10) ether phosphate, 2% triphenylethylphenol polyoxyethylene ether phosphate (Nongru 600# phosphoric acid ester), 10% xylene, 2.5% pyrrolidone, 3.5% calcium dodecylbenzenesulfonate, 0.5% organic silicon (defoamer), and water to make up to 100%.

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PUM

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Abstract

The invention relates to an insecticidal composition containing matrine and chromafenozide. The effective ingredients are composed of chromafenozide and matrine. The weight ratio of chromafenozide to matrine is (2-5):1. The two effective ingredients achieve synergistic interaction, and the insecticidal composition is applicable to prevention and treatment of rice cnaphalocrocis medinalis, can delay development of pest resistance, reduces the application amount of each single dosage, improves the prevention and treatment effects, meanwhile is beneficial for reducing chemical pesticide residue and conforms to comprehensive treatment of pests.

Description

technical field [0001] The invention relates to the technical field of pesticide application, in particular to an insecticidal composition containing matrine and cyclazone. Background technique [0002] The rice leaf roller is the main pest of rice. It uses larvae to damage rice, and leaves to form longitudinal bracts. It hides in it and feeds on the upper epidermis and mesophyll, leaving only the white lower epidermis, and white spots appear on the insect bracts. When the damage is serious, the field is full of insect bracts. A withered and white. The damage at the seedling stage affects the normal growth of rice, or even dies; the damage from the tillering stage to the jointing stage, the tillering is reduced, the plant is shortened, and the growth period is delayed. Thousand-grain weight decreased. [0003] Cenfenozide, the English name is: chromafenozide, an insect growth regulator developed by Nippon Kayaku Co., Ltd. Cenfenozide is a bishydrazide insecticide. Interna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N43/16A01N25/04A01P7/04
CPCA01N43/90A01N25/04A01N43/16A01N2300/00
Inventor 邓付圆闭广进杨旭新韦永昌
Owner GUANGXI NANNING YITU BIOLOGICAL SCI & TECH CO LTD
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