Development of Hydrotaea aenescens (Diptera: Muscidae) in manure of unweaned dairy calves and lactating cows |
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Authors: | Hogsette Jerome A Farkas Róbert Coler Reginald R |
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Affiliation: | Center for Medical, Agricultural, and Veterinary Entomology, USDA-ARS, Gainesville, FL 32604, USA. |
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Abstract: | In laboratory studies performed in the United States and Hungary, the dump fly Hydrotaea aenescens (Wiedemann) was reared successfully in manure of 1- to 8-wk-old dairy calves, and in manure from adult lactating dairy cows. Survival in manure collected from 1-wk-old calves was poor (7.2%), better in manure collected from 2- and 3-wk-old calves (53.5%), and best in manure collected from 4- to 8-wk-old calves (71.4%). Survival in cow manure was slightly lower (47.4%) than that in calf manure. Reasons for different rates of development in the United States and in Hungary, and by calf age are discussed as are implications for biological control. |
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