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Sticky Cotton Prevention – Late Season Insect and Defoliation Management

 

Preventing sticky cotton is crucial in producing quality cotton. Late-season populations of cotton aphid and Silverleaf whitefly can produce significant amounts of honeydew when populations build. These pests are of most concern from mid-boll filling through harvest, when insect populations build and threaten exposed lint. Pest management guidelines for cotton aphid and silverleaf whitefly focus on strategies to use once threshold pest populations are reached, with the approach varying with the composition of the developing population (nymphs, adults), crop growth stage, and with the presence of exposed lint. Current pest management guidelines for whitefly and aphid can be interpreted as meaning defoliation is the final event of the season. This is based on the assumption…

 

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Development of Sampling and Decision Plans for Silverleaf Whitefly on Pima

 

INTRODUCTION

Bemisia whitefly populations are a significant annual threat to cotton production, particularly pima cotton, in the San Joaquin Valley. This pest has the potential to reduce cotton yields; however, the prospect of cotton lint contamination, creating a condition called sticky cotton, is the primary concern associated with whitefly infestations. Important research on sampling, damage potential, and management of Bemisia whiteflies has been conducted in Arizona. This research has formed the backbone of our present management scheme in California. In summary, this research supported three stages of whitefly management during the season with different insecticide chemistries during each stage. The need to management resistance and the characteristics…

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Management of Key Cotton Arthropod Pests with Insecticides and Acaricides

INTRODUCTION

Integrated pest management of California cotton insect and mite pests is based on a long record of successful research and implementation. Maintaining cost-effective and efficacious insecticides and miticides is a constant, evolving process. As the pest biology, cropping patterns, cotton varieties, production techniques, and other factors change in the cotton agroecosystem, pest management needs change. The development of resistance in pests and regulatory actions are two of the key actions that influence the availability of crop protection tools. Fortunately, new materials are developed to facilitate control and to compensate for these losses. Regulatory actions with pesticides are ongoing and appear inevitable in California. Most recently, volatile organic compound (VOCs) issues have surfaced and regulations to restrict many…

 

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