Journal of Economic Entomology (1994) 87, 1318-1324

R.A. Thompson, S.S. Quisenberry, F.K. N'Guessan, A.M. Heagler and G. Giesler (1994)
Planting date as a potential cultural method for managing the rice water weevil (Coleoptera: Curculionidae) in water-seeded rice in southwest Louisiana
Journal of Economic Entomology 87 (5), 1318-1324
Abstract: Two field studies in Louisiana were conducted in 1991 and 1992 to assess the impact of planting date on the damaging effects of rice water weevil, Lissorhoptrus oryzophilus Kuschel, larvae on rice (Oryza sativa L.) yield indicators. The data from both years showed that yields of rice planted before mid-April were not reduced by weevil infestation. Early planted rice did not escape damaging populations of rice water weevils but was able to tolerate such infestations without loss of yield, unlike later-planted rice. Economic analysis of the data showed that planting date has a greater impact on yield than does carbofuran treatment. The findings from our study suggested that early rice seeding offered potential as a cultural control tactic in southwest Louisiana to reduce the damaging effects of rice water weevil.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
control - general

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Lissorhoptrus oryzophilus	Rice (Oryza)	U.S.A. (mid S)