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1 December 2014 Curative and Preventive Control of Aceria aloinis (Aceria: Eriophyidae) in Southern California
L. E. Villavicencio, J. A. Bethke, B. Dahlke, B. Vander Mey, L. Corkidi
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The aloe mite, Aceria aloinis Keifer, causes physiological and morphological alterations in species of Aloe L. We conducted three trials to evaluate the potential of various miticides for curative and preventive control of damage caused by A. aloinis. In the first trial, the efficacy of nine miticides against aloe mite damage was assessed without the removal of infected tissue in Aloe reitziiae Reynolds. Although significant reductions in the number of mites and eggs were found due to the treatments, miticide application did not reduce the amount of plant area damaged or damage severity. Once the plants are infected, the irreversible damage by aloe mite progresses. The second trial analyzed the effects of seven miticides on aloe mite damage on Aloe ’Goliath’ plants in which the damaged tissue was removed. Reduced damage severity and mite number was observed in all treated plants. To determine if aloe mite damage could be prevented, the effects of six miticides with and without surfactant were tested on uninfected plants of Aloe spinosissima A. Berger in a third trial. Except for chlorfenapyr and fenazaquin, all treatments reduced plant damaged area, damage severity, and the number of mites 60 wk following three miticide applications. The severity index in the second and third trials suggested that all treated plants would be marketable. Our study demonstrated that there were miticides that were effective by contact (carbaryl), translaminar (spiromesifen), and systemic (spirotetramat) action, which can be used to cure and to prevent aloe mite plant damage alone or in combination with cultural practices.

© 2014 Entomological Society of America
L. E. Villavicencio, J. A. Bethke, B. Dahlke, B. Vander Mey, and L. Corkidi "Curative and Preventive Control of Aceria aloinis (Aceria: Eriophyidae) in Southern California," Journal of Economic Entomology 107(6), 2088-2094, (1 December 2014).
Received: 28 May 2014; Accepted: 1 August 2014; Published: 1 December 2014

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