The rice water weevil, is the most severe insect pest of rice in Louisiana. Larval feeding result in stunted plants with few tillers and low grain yield. Total losses in Louisiana are estimated to exceed at $10 million annually.
A field experiment was conducted at year 2001 to document the impact of larval injury on the rice plant growth characteristics. Four commeical varieties 'Cocodrie', 'Cypress', 'Bengal' and 'XP'(a hybrid variety) were evaluated. It was found that the reduction in yield was mostly due to the reduction in tillering.
Species 1: Coleoptera Curculionidae Lissorhoptrus oryzophilus (rice water weevil)
Keywords: yield loss, tiller
The ESA 2001 Annual Meeting - 2001: An Entomological Odyssey of ESA