CN1279016A

CN1279016A - Insecticiding-miticiding composition containing brofenxalerate

Info

Publication number: CN1279016A
Application number: CN 99110074
Authority: CN
Inventors: 张业升
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-29
Filing date: 1999-06-29
Publication date: 2001-01-10

Abstract

An insecticiding-miticiding composition containing brofenvalerate for cotton, vegetables and fruit trees is prepared from brofenvalerate and phoxin (or triazophos) as main components, emulsifier, solvent and stabilizer. Its advantages include high knockdown speed and permeabiliey, special effect to resistant bollworm, aphid and mites, low cost, broad spectrum and low dosage.

Description

A kind of insecticide acaricide composition that contains brofenxalerate

The present invention relates to a kind of insecticide acaricide composition that contains brofenxalerate, belong to the pesticide processing formulation.

Phoxim (or Hostathion) is one of organophosphorus insecticides kind, it once with efficient, insecticidal spectrum is wide and welcome, but present growth along with service time, particularly because single variety uses continuously repeatedly and consumption is improper, cause insect that its resistance is constantly strengthened, drug effect by descend, dosage obviously improves, agriculture use cost increases; Brofenxalerate is a kind of novel pyrethroid insecticides, though characteristics such as that it has is efficient, quick-acting, wide spectrum because it has just been succeeded in developing, exist control cost height, is difficult for the shortcoming of promoting.In order to delay the generation of insect to certain class pesticide resistance, increase the service life, strengthen drug effect, reduce cost, it is very necessary carrying out the research of dissimilar agriculture chemical compounding, though both at home and abroad aspect pesticidal preparations achievement in research a lot, multiple complex preparation supply the market is also arranged, but up to the present, Shang Weiyou is the agriculture chemical compounding formulation of main active ingredient with brofenxalerate and phoxim (or Hostathion).

Purpose of the present invention is intended to overcome the shortcoming of aforementioned brofenxalerate and organophosphorous pesticide, from pressing for of present agricultural production, provide a kind of delay and overcome resistance, it is composite with brofenxalerate and organophosphorous pesticide that insecticidal spectrum is wide, application point is many, activity is high, the power of knocking down is strong, use cost is low is the compounded preparation of pesticide of feature.

The technical scheme that the present invention takes is, mainly adopting with organophosphorous pesticides such as brofenxalerate and phoxim or Hostathions is main active ingredient, and it is formulated to add suitable emulsifier, solvent, stabilizing agent etc., and its formula range is:

Active ingredient

(brofenxalerate and organophosphorous pesticide total amount) 10～15%

Emulsifier 3～15%

Solvent and stabilizing agent supply 100%

Active ingredient in the above-mentioned prescription can be brofenxalerate and phoxim, also can be brofenxalerate and Hostathion, its ratio each other, should take all factors into consideration factors such as control district pest resistance situation, synergistic effect and use cost and determine that the relative scale of general brofenxalerate and organic phosphor (phoxim or Hostathion) should be controlled at 1: scope between (1～25).

A kind of containing in the insecticide acaricide composition of smelling the chrysanthemum ester that goes out of the present invention, selected emulsifier is the mixed emulsifier of nonionic and anionic, generally be HLB value, to obtain the optimum emulsification effect according to concrete consumption and the ratio and the solvent situation adjusting selection emulsifier of active ingredient.

In a kind of insecticide acaricide composition that contains brofenxalerate of the present invention, selected solvent can be selected toluene, benzene, dimethylbenzene or their mixture etc. for use.

In general, two or more insecticide is used with, synergy, addition, three kinds of results of antagonism may appear, the discrimination standard of synergistic effect is that co-toxicity coefficient is obviously greater than 100, the inventor adopts mixture screening technique--the co-toxicity coefficient method of generally acknowledging both at home and abroad, indoor the high anti-cotton bollworm kind of beta-cypermethrin system is screened, the result shows that the mixture of brofenxalerate and phoxim (or Hostathion) has obvious synergistic effect to high resistance helicoverpa armigera.

A kind of insecticide acaricide composition that contains brofenxalerate of the present invention, production method is easy, is suitable for industrialized mass, compares with existing Pesticidal composition, has following obvious advantage.

1, antagonism cotton bollworm of the present invention, aphid, mite class have special efficacy;

2, not only killed high instar larvae, but also kill ovum, penetration is strong;

3, application point is many, and active high, desinsection speed is fast, and the power of knocking down is strong;

4, obviously reduced the resistance selection pressure, the service life that keeps and strengthened old kind agricultural chemicals;

5, low toxicity is to the person poultry safety;

6, use cost is low, and dispenser Zhiduo County worm of holding concurrently can reduce spray medicine number of times, saving of work and time.When using this complex preparation, generally need 1000～3000 times of liquid of thin up, carry out the field spray dispenser, its lasting period is 7-15 days, can not be in the mulberry field, fish pond, apiary use.

This complex preparation is mainly used in crop pests such as cotton, vegetables, fruit tree, and as the control of cotton bollworm, aphid, two spotted spider mite, tortrix moth, cabbage caterpillar, heart-eating worm etc., especially the antagonism insect has special efficacy, is the desirable agricultural chemicals of preventing and treating resistant insect at present.

Of the present inventionly add technological process and see accompanying drawing 1

Embodiment 1, brofenxalerate (effective content is weight percentage, and is as follows) 10%, phoxim 10%, emulsifier 10%, surplus is auxiliary agents such as solvent, stabilizing agent;

Embodiment 2, brofenxalerate 10%, phoxim 20%, emulsifier 10%, surplus is auxiliary agents such as solvent, stabilizing agent;

Embodiment 3, brofenxalerate 6%, phoxim 20%, emulsifier 10%, surplus is auxiliary agents such as solvent, stabilizing agent;

Embodiment 4, brofenxalerate 5%, Hostathion 15%, emulsifier 8%, surplus is auxiliary agents such as solvent, stabilizing agent;

Embodiment 5, brofenxalerate 8%, Hostathion 10%, emulsifier 10%, surplus is auxiliary agents such as solvent, stabilizing agent;

Embodiment 6, brofenxalerate 10%, Hostathion 10%, emulsifier 10%, surplus is auxiliary agents such as solvent, stabilizing agent.

Claims

1, a kind of go out insecticide acaricide composition of chrysanthemum fat of bromine that contains is characterized in that mainly being aided with composite forming such as suitable emulsifier, solvent and stabilizing agent with a certain amount of brofenxalerate and a certain amount of organophosphorus insecticide phoxim (or Hostathion).

2, a kind of insecticide acaricide composition that contains brofenxalerate as claimed in claim 1 is characterized in that described compound method constituent content by effective content weight ratio (W/W) is:

Brofenxalerate and organophosphorous pesticide total amount 10～50%

Emulsifier 3～15%

Solvent and stabilizing agent supply 100%

3, a kind of insecticide acaricide composition that contains with brofenxalerate as claimed in claim 2, the relative scale that it is characterized in that brofenxalerate and organophosphorous pesticide is 1: (1～25).