White Grub, Leucopholis irrorata (Coleoptera: Scarabaeidae): Pest Status, Population Dynamics, and Chemical Control in a Rice-Maize Cropping Pattern in the Philippines

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Leucopholis irrorata Chevrolat is a perennial white grub pest of the dryland rice-maize cropping pattern in localized fields of Batangas, Philippines. Adults emerge from underground pupal cells and fly to nearby host trees before oviposition in response to the onset of monsoonal rains after a 3-month dry season coterminous with establishment of the rice crop. Damage via loss of stand occurs on the following young maize crop when the white grub population is composed of 3rd-instar larvae. Maize fields with perennial damage are located near adult flight trees in areas where sugarcane is the predominant crop. Furrow-applied lindane granules at 0.25 kg of Al/ha during sowing of rice provide year-long control of this univoltine species at a cost small-scale farmers can afford.

Document Type: Research Article

Publication date: October 1, 1983

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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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