Environmental Entomology (1983) 12, 1496-1499

J.S. Naresh and C.M. Smith (1983)
Development and survival of rice stink bugs (Hemiptera: Pentatomidae) reared on different host plants at four temperatures
Environmental Entomology 12 (5), 1496-1499
Abstract: The suitability of rice, Oryza sativa (L.), sorghum, Sorghum bicolor (L.) Moench, and vasey grass, Paspalum urvillei Stuedel, as host plants of the rice stink bug, Oebalus pugnax (F.), were determined at 21, 24, 27, and 30°C. At 21, 24, and 27°C there were no significant (P < 0.05) differences in the weight of 10-day-old nymphs reared on the three hosts, but at 30°C, weights of nymphs reared on grain sorghum were significantly (P < 0.05) greater than those reared on rice or vasey grass. Weights of 15-day-old nymphs followed the same pattern, but there were no significant (P < 0.05) differences between weights of insects reared on rice and grain sorghum at 30°C. At 24 and 30°C, weights of adults were significantly (P < 0.05) different (rice > sorghum > vasey grass), but at 21 and 27°C weights of adults from rice and grain sorghum were similar. Nymphal survival was significantly (P < 0.05) greater on rice and grain sorghum than on vasey grass at each temperature except 21°C, where there was no difference between insect survival on vasey grass and grain sorghum. At 21 and 27°C, development time (egg to adult) was significantly (P < 0.05) shorter on grain sorghum than on rice or vasey grass, but at 24 and 30°C no differences in developmental time existed. The mean development time from egg to adult on rice, sorghum, and vasey grass at 30°C was 22.9 days, 20.7 days, and 22.3 days, respectively.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Charles Michael Smith

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Oebalus pugnax	Sorghum (crop)
	Oebalus pugnax	Rice (Oryza)	U.S.A. (mid S)