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Master's Theses and Project Reports

Biological control

Entomology

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Biological Control Of Marmara Gulosa Guillén And Davis In The San Joaquin Valley, Crystal A. Kirkland Feb 2009

Biological Control Of Marmara Gulosa Guillén And Davis In The San Joaquin Valley, Crystal A. Kirkland

Master's Theses and Project Reports

Peelminer, Marmara gulosa Davis and Guillén, has been reported as a sporadic pest in California and Arizona since 1998. Marmara gulosa has been a persistent pest in the San Joaquin Valley of California (USA) since 1998. Prior to 2000 the only reports of high populations of citrus peelminer were in the Coachella Valley. The larval stages of M. gulosa create serpentine mines scarring the upper epidermal layers of citrus rind, rendering it unacceptable for fresh market sale. Chemicals have failed to provide adequate control of M. gulosa; thus, the use of natural enemies is considered the best long-term option. Cirrospilus ...