Imidacloprid has a relatively high indoor toxicity to peanut root-knot nematodes.
Release time:
2018-11-05
【Abstract】Researchers from the College of Forestry at Henan University of Science and Technology used the immersion method to determine the toxicity of imidacloprid against second-stage larvae of root-knot nematodes, Pratylenchus brachyurus, Belonolaimus longicaudatus, pine wood nematodes, and rotten stem nematodes under different concentrations and times, and examined its effect on the egg hatching inhibition rate of root-knot nematodes.
Researchers from the College of Forestry, Henan University of Science and Technology used the immersion method to determine the toxicity of imidacloprid on second-stage larvae of root-knot nematodes in peanuts, Pratylenchus brachyurus, Belonolaimus longicaudatus, Bursaphelenchus xylophilus, and Ditylenchus destructor under different concentrations and times, and examined its effect on the inhibition rate of egg hatching of root-knot nematodes in peanuts.
The results showed that root-knot nematodes in peanuts were most sensitive to imidacloprid, while Ditylenchus destructor was the least sensitive. At a concentration of 100 g/L, 48 hours after treatment, the mortality rates of imidacloprid on root-knot nematodes in peanuts, Pratylenchus brachyurus, Belonolaimus longicaudatus, Bursaphelenchus xylophilus, and Ditylenchus destructor were 91.00%, 65.70%, 45.70%, 44.00%, and 9.67%, respectively. The inhibition rate of egg hatching of root-knot nematodes in peanuts increased with the increase in pesticide concentration.
As of the end of September 2018, China has approved 4 imidacloprid products (all are formulations combined with abamectin) for the registration of controlling plant nematode diseases, with registered crops and control targets including root-knot nematodes in peanuts, Agriotes lineatus, larvae of beetles, mole crickets, Bursaphelenchus xylophilus, and root-knot nematodes in tomatoes.
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Imidacloprid has a relatively high indoor toxicity to peanut root-knot nematodes.
Researchers from the College of Forestry at Henan University of Science and Technology used the immersion method to determine the toxicity of imidacloprid against second-stage larvae of root-knot nematodes, Pratylenchus brachyurus, Belonolaimus longicaudatus, pine wood nematodes, and rotten stem nematodes under different concentrations and times, and examined its effect on the egg hatching inhibition rate of root-knot nematodes.
The future prospects of biological pesticides are very promising.
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