Resistance of rice varieties against green rice leafhopper, Nephotettix cincticeps Uhler
Tropical Agriculture Research Series 5: 221-225Accession: 000182504
The author outlines some of the results obtained in recent studies in Japan on varietal resistance in rice to attack by Nephotettix cincticeps (Uhl.). Several rice varieties of the indica type were found to possess elements that adversely affect leafhoppers that feed on them. Mortality was high among both nymphs and adults within a few days of the start of infestation, and the fecundity of the surviving females was much reduced. Fewer than 5% of the newly hatched nymphs placed on the Tadukan variety (from the Philippines) and the Te-tep variety (from Indo-China) were able to complete their development to the adult stage, as compared with more than 50% on susceptible Japanese (japonica) varieties.