CN1063019C - Olivomitecidin and efficient cypermethrin compounded pesticide - Google Patents

Abstract

The invention relates to a pesticide, in particular to a compound pesticide. The compound pesticide of the invention contains 0.1-2.0% of abamectin (Avemectin) and 1.0-15% of beta-cypermethrin as active ingredients. Tests have proved that the compound pesticide of the invention has the advantages of strong permeability, wide control spectrum, high control effect and low use cost.

Description

Abamectin, beta-cypermethrin compound pesticide

The invention relates to a pesticide, in particular to a compound pesticide.

Liriomyza sativae (Liriomyza.Sativae) belongs to Diptera, Phyllominaceae, Liriomyza genus, and is a worldwide dangerous pest that widely harms vegetables and flowers. According to relevant reports, the economic impact of Liriomyza sativae on the United States and even the world is quite serious. In 1993, my country discovered Liriomyza sativae for the first time in Hainan. Up to now, according to literature reports, it has spread to almost all provinces and cities in the country, and its damage range is extremely wide. It hosts more than 100 kinds of plants in 22 families, and can harm kidney beans, cowpeas, green beans, and cucumbers. , wax gourd, watermelon, tomato, pepper and other legumes, solanaceae, cucurbitaceae and cruciferous more than 40 kinds of main vegetables, but also harm cotton, castor and some flowers, weeds and so on. Cause great loss to agricultural production. However, such pests reproduce rapidly, have a wide range of hosts, small body, serious generation overlap, larvae sneak into the mesophyll, and are prone to resistance to general insecticides, so it has brought great difficulties to the control. What's more serious is that since 1996, another species of Liriomyza sativae that is more harmful, has a wider range of hosts, and has higher drug resistance --- Liriomyza sativae has also entered my country, and it is currently spreading. In addition, there are other species of Liriomyza sativae that have caused harm to vegetables, flowers, tobacco, and grain in some provinces and urban areas. Therefore, it has become a top priority to develop and develop a kind of medicament that has outstanding control effect on Liriomyza sativae as soon as possible and can be accepted by farmers in price.

Avermectin (Avermectin) insecticides is a class of new agents introduced to my country by the MSD company of the United States in the 1980s. At present, my country can produce it by itself, and has successively developed and registered 1.8% and 0.9% Avermectin. preparation. Avermectin is a new class of microbial-derived insecticides. Due to its complex composition and unique insecticidal mechanism - killing insects through the GABA system, there is no cross-resistance with other conventional insecticides. It has a good control effect on Liriomyza sativae, but it cannot be widely used in production due to its high price and high cost of use.

The purpose of the present invention is to address the above problems, to provide a compound insecticide that is highly efficient, broad-spectrum, can treat both adults and larvae, has strong permeability, low cost, low toxicity, and is not easy for pests to develop resistance.

Describe the main content of the present invention in detail below:

The invention is a compound pesticide, which is characterized in that the effective ingredients are 0.1-2.0% abamectin (Avermectin) and 1.0-15% beta-cypermethrin.

Specifically, the composition of compound insecticide of the present invention is as follows:

Raw material % (weight/volume)

Abamectin 0.1-2.0

Beta-cypermethrin 1.0-15

Penetrant 10-15

Additives 8-12

Solvent + Co-solvent Balance

The solvent, penetrating agent, auxiliary agent, and co-solvent described in the present invention may be solvents, penetrating agents, auxiliary agents, and co-solvents well known to those skilled in the art. The solvent can be xylene, etc.; the penetrating agent can be any one of fast T, JFC or their mixture; the auxiliary agent can be any one of 0201, 0208, 2201, OP-15, 700 or two of them Or a variety of compounding aids, etc.: The co-solvent can be any one of methanol, isopropanol or their mixture.

Compared with the prior art, the present invention has the following typical advantages:

1. The source of raw materials is wide, and the synergistic effect of compounding is remarkable.

Abamectin and beta-cypermethrin have a wide range of sources in China, and the two-component compound has a high synergistic effect (see Tables 1 and 2 below). The CTC value is 140-299 and the preparation is stable.

2. Strong permeability

Adding the penetrating agent according to the present invention improves the ability of the medicament to penetrate the leaves and the surface of pests, and the synergistic effect is extremely significant (the synergistic multiple is 1.83-2.51 times).

3. Broad spectrum of prevention and treatment

According to the compound preparation of the present invention, combined the insecticidal characteristics of Avcrmectins and pyrethroid pesticides, and increased the penetrating ability to leaves and worm bodies, not only can effectively prevent and control Liriomyza adult and larvae, but also Spider mites, diamondback moths, etc. also have special effects.

4. Outstanding prevention effect

Indoor and multi-point tests in greenhouses show that a group of preparations compounded according to the present invention are diluted 2000 times, and the control efficiency against Liriomyza sativae larvae is between 89.51-94.46.

5. Low cost of use

The control cost of the preparation compounded according to the present invention to Liriomyza sativae is 1/6-1/3 of the commonly used imported pesticides such as cyromazine, abadine and the like. And can achieve similar effect.

Embodiments of the present invention are described below:

According to the ratio given in the following examples, the amount of each component is weighed and mixed by a method well known to those skilled in the art to obtain the present invention.

Table 1: Synergistic effect of abamectin and beta-cypermethrin on adults of Liriomyza sativae

(drug film method) potion Proportion Regression equation (Y=a+bx) LC ₅₀ (95% confidence limit) PPM CTC Avermectin beta-cypermethrin abamectin + beta-cypermethrin + beta-cypermethrin + beta-cypermethrin + beta-cypermethrin + beta-cyanochloride 1:00:11:51:61:6.51:71:8 Y＝5.0880+1.2490xY＝4.1681+1.0929xY＝4.7160+0.9268xY＝4.8040+0.7973xY＝4.9630+0.9467xY＝4.8290+0.6411xY＝4.7980+0.6710x 0.85(0.76-0.95)5.77(5.07-6.56)2.02(1.74-2.36)1.76(1.48-2.09)1.09(0.94-1.27)1.84(1.49-2.29)2.00(1.63-2.46) 145.39179.45298.77181.94175.58

Table 2: Synergistic effect of abamectin and beta-cypermethrin on Liriomyza sativae larvae

(leaf dipping method) potion Proportion Regression equation (Y=a+bx) LC ₅₀ (95% confidence limit) PPM CTC Avermectin beta-cypermethrin abamectin + beta-cypermethrin + beta-cypermethrin + beta-cypermethrin + beta-cypermethrin + beta-cyanochloride 1:00:11:51:61:6.51:71:8 Y＝5.3719+1.3321xY＝4.4231+0.9978xY＝4.8965+0.804xY＝4.9974+0.999xY＝5.0530+0.9966xY＝5.0961+1.5031xY＝4.9596+0.8670x 0.53 (0.48-0.58) 3.78 (3.36-4.26) 1.32 (1.16-1.51) 1.01 (0.89-1.13) 0.88 (0.79-0.99) 0.81 (0.72-0.90) 1.11 (0.97-1.26) 141.62199.50245.32264.17202.54

Table 3: Effects of abamectin and beta-cypermethrin mixture after adding different penetrants

Synergistic effect of Liriomyza sativae larvae

(leaf dipping method 5 seconds) Penetrant type and content Regression equation (Y=a+bx) LC ₅₀ (95% confidence limit) PPM CTC 10% Fast T15% Fast T10% JFC without penetrant Y=5.3686+0.9467xY=5.4816+1.0630xY=5.2848+0.8836xY=5.0530+0.9966x 0.41(0.36-0.46)0.35(0.32-0.39)0.48(0.42-0.54)0.88(0.79-0.99) 2.152.511.83

Table 4: The control effect (72h) of several pairings on Liriomyza sativae larvae potion dilution Predrug larvae After 72 hours corrected death rate 1.5% abamectin·beta cyanogen chloride containing 10%d1.5% abamectin·beta cyanogen chloride containing 15%d1.5% abamectin·beta cyanogen chloride containing 15%c1.5% abamectin Su · high-efficiency cyanogen chloride CK (water) 2000200020002000 389416429443423 354391382364425 91.4794.4689.5182.6

Example I 1.5 % Qi · Holchromesa Oil raw material ratio % (weight/volume) Oither mite 0.1 high -efficiency cymbal essence 1.4 osmotic agent JFC 150201 12 vicronezenzenzenzhehe balance

Example II Raw material of 1.5% Qi·High Chlorine EC Proportion % (weight/volume) abamectin 0.2 Beta-cypermethrin 1.3 Penetrant fast T

Example III 2.0 % Qi · Holchromic Oil raw material ratio % (weight/volume) olee mite 0.1 high -efficiency cymbal essence 1.9 osmotic agent JFC+fast T 15OP15+700#10 vicrilithene balance

Example IV Raw material of 2.0% Qi·High Chlorine EC Proportion % (weight/volume) abamectin 0.2 Beta-cypermethrin 1.8 Penetrant fast T 102201 1 0 Benzene methanol + di

Claims (5)

1, a kind of compound pesticide is characterized in that its proportioning is (weight/volume): Abamectin 0.1-2.0 HPC 1.0-15 Penetrant 10-15 Additives 8-12 Solvent + Co-solvent Balance 2. The compounded pesticide according to claim 1, characterized in that the penetrating agent is any one of Fast T, JFC or their mixture. 3. According to the compound pesticide of claim 1, it is characterized in that the adjuvant used is any one of No. 0201, 0208, 2201, OP-15, 700 or two or more compound adjuvants among them . 4. The compound pesticide according to claim 1, characterized in that the solvent used is xylene. 5. The compounded pesticide according to claim 1, characterized in that the co-solvent used is any one of methanol, isopropanol or their mixture.