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Oviposition and Survivorship of Sugarcane Grubs (Coleoptera: Scarabaeidae) at Different Soil Moistures

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The oviposition of the sugarcane grubs. Cyclocephala parallela Casey and Li gurus subtropicus (Blatchley), was measured at different soil moistures. In addition, the flood tolerance of third instars of these two species was also measured. Oviposition of both species was defined by Gaussian models that showed oviposition rates approaching zero at soil moisture extremes and the optima at the midrange of soil moistures. However, our data showed that C. parallela oviposited in wetter soils than L. subtropicus. This ovipositional behavior corresponds to the greater flood tolerance of third instar C. parallela compared with L. subtropicus.

Document Type: Research Article

Publication date: August 1, 1990

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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