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Figure

Seasonal development of citrus thrips on navel orange in the San Joaquin Valley. Citrus thrips produce up to 8 generations if the weather is favorable, but the most important generation is the second (2) because it scars the small fruit until they are about 4 cm ( 1 1/2 inch) in diameter (red shaded area).

Illustration from Integrated Pest Management for Citrus, 1st edition. UC ANR Publication 3303.

Statewide IPM Program, Agriculture and Natural Resources, University of California
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