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The efficacy of neem oil and neem-extracted substances on the rice leafhopper Nephotettix virescens (Distant)


Journal of the National Research Council of Thailand 21(2): 37-58
The efficacy of neem oil and neem-extracted substances on the rice leafhopper Nephotettix virescens (Distant)
Neem oil was extracted from neem seeds, and further extraction was performed by water and other solvents. The repellent action of neem oil at 10% and upwards to the rice pest Nephotettix virescens was found to increase with increasing oil concn. Neem extracted by distillation was more effective than neem oil against female cicadellids. Of 3 extracts obtained by distillation (N1, N1M and N2), N1 was the best, followed by N2 and pure water, resp.


Accession: 002249709



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