Metaflumizone and chlorpyrifos mixture insecticide

Abstract

The invention discloses a metaflumizone and chlorpyrifos mixture insecticide belonging to the agricultural chemical preparation technical field. Components and weight percentage content of the insecticide are: 0.5% to 10% of metaflumizone, 20% to 40% of chlorpyrifos, 8% to 15% of emulsifier, 5% to 15% of latent solvent, 1% to 5% of antifreeze, 0.3% to 8% of stabilizing agent, 0.2% to 4% of potentiating agent, 20% to 60% of solvent, 0.1% to 0.3% of pH value regulator. The mixture insecticide has obvious synergism when maintaining advantages of single dosage. The whole toxicity coefficient reaches 170 above. The mixture insecticide is more rapid than metaflumizone single dosage and longer than chlorpyrifos single dosage in lasting effect, which has obvious insecticidal activity for rice leafroller, pink stem borer and Chilo suppressalis. Compared with metaflumizone single dosage, the mixture insecticide has low agricultural chemical cost which reduces 30% above. The invention can be widely applied in field production and agricultural chemical manufacturing companies.

Description

technical field [0001] The invention relates to the technical field of pesticide preparation, in particular to a high-efficiency and low-toxicity insecticide compounded from metaflumizone and chlorpyrifos for controlling rice leaf rollers and rice stem borers. Background technique [0002] Rice leaf roller (Cnaphalocrocis medinalis Guenee) and rice borer (including rice stem borer, rice stem borer, and rice borer) are the main pests in rice production, which can generally cause a 20% to 30% yield reduction, and can reach more than 50% in severe cases . Especially in recent years, due to climate change, planting structure changes and other reasons, the occurrence and damage are particularly serious. For a long time, the main medicaments for controlling the above-mentioned pests are monosultap, triazophos, chlorpyrifos, fipronil, etc. Among them, monosultap (double) is a biomimetic low-toxicity insecticide, but its effect on rice vertically rolled leaves above the 2nd age Th...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at the long-lasting period of a single agent of metaflumizone, but its insecticidal speed is relatively slow, and the damage cannot be quickly controlled, while the single agent of chlorpyrifos has a short insecticidal speed but a short lasting period. Through systematic analysis, using the respective advantages of the two in killing target pests, and through the complementary and synergistic effects of scientific and reasonable compounding technologies, a new insecticide with wide insecticidal spectrum, obvious synergistic effect, and low cost is proposed, especially for rice. New varieties of compound pesticides with special effects on Leaf Roller and Rice Borer

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