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How to Manage Pests
UC Pest Management Guidelines
Cotton
Monitoring in a Cotton Field
(Reviewed 2/05,
updated 2/05)
In this Guideline:
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Monitoring is a crucial component of all integrated pest management (IPM)
programs. It helps you identify potential problems and to assess the overall
field conditions. Check the field regularly for pests and natural enemies of
pest species, as well as the maturity and health of the crop.
There are six major monitoring periods for a cotton crop. The presence and
population development of key pests are tracked during these periods. The
information in the table below outlines the monitoring periods, major pests
monitored, and the methods used to monitor them. Detailed information on each
pest and its monitoring method is available under the individual pest sections
in this guideline. See the "Year Round IPM
Program" section of this guideline on the UC IPM Web site for a
comprehensive overview of monitoring in cotton.
Monitoring procedures that involve multiple pests are detailed here. Procedures
for single pests are noted in the appropriate pest section of this guideline.
Major Monitoring Periods, Pests Monitored, and Monitoring Methods Used in a
Cotton Field.
| Monitoring Period |
Pests Monitored |
Method Used |
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preplant to planting |
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crop emergence to seedling growth |
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spider mites, aphids, and thrips
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- examine cotyledons or first true leaves
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false chinch bugs, stink bugs
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- monitor nearby crops, fence rows and weedy areas
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early squaring |
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spider mites, aphids, and whitefly
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- examine 5th mainstem node leaf from top of plant
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- sweep sampling, square retention monitoring
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bloom to boll |
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spider mites, aphids, and whitefly
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- examine 5th mainstem node leaf from top of plant
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- sweep sampling, square retention monitoring
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first open boll to preharvest |
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examine 5th mainstem node leaf from top of plant
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harvest to postharvest |
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![[UC Peer Reviewed]](/IMAGES/logo-ucpeerreviewed.jpg)
UC IPM Pest Management Guidelines: Cotton
UC ANR Publication 3444
General Information
L. D. Godfrey, Entomology, UC Davis
P. B. Goodell, UC IPM Program, Kearney Agricultural Center, Parlier
E. T. Natwick, UC Cooperative Extension, Imperial Co.
D. R. Haviland, UC IPM Program, Kern Co.
Acknowledgment for contributions to the insects and mites section:
E. E. Grafton-Cardwell, Kearney Agricultural Center, Parlier
N. C. Toscano, Entomology, UC Davis
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