SEASONAL LIFE STAGE ABUNDANCE OF DIAPREPES ABBREVIATUS IN IRRIGATED AND NON-IRRIGATED CITRUS PLANTINGS IN CENTRAL FLORIDA

Autor:	Clayton W. McCoy, Herbert N. Nigg, Robin J. Stuart
Rok vydání:	2003
Předmět:	food.ingredient biology Host (biology) Sowing biology.organism_classification Water potential food Diaprepes abbreviatus Agronomy Abundance (ecology) Insect Science Botany Diaprepes Water content Thicket Ecology Evolution Behavior and Systematics
Zdroj:	Florida Entomologist. 86:34-42
ISSN:	1938-5102 0015-4040
Popis:	The seasonal abundance of various life stages of Diaprepes abbreviatus (L.), was monitored in separate years in adjacent irrigated and non-irrigated citrus plantings, as well as thickets of Brazilian-pepper located near Poinciana, FL in Osceola County. Adult emergence, estimated by weekly catches in cone-shaped ground traps, occurred throughout the year with a peak in mid-June in both citrus and Brazilian-pepper plantings. Onset of adult emergence coincided with an increase in soil moisture and temperature. Trap counts were highest when soil water potential increased to 3-5 centibars at a depth of 15-30 cm and soil temperature averaged 22-24EC. In the non-irrigated citrus planting, the adult emergence peak was of shorter duration, but of greater magnitude, compared to the irrigated planting. Although the alternate host, Brazilian-pepper, produced fewer weevils than did citrus, the seasonal emergence pattern was virtually the same. Adult abundance within the citrus plantings was also monitored wee...
Databáze:	OpenAIRE
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