Year-Round IPM Program Pages
This year-round IPM program covers major pests of cotton grown in California.
About First Bloom to First Open Boll
What should you be doing during this time?
Continue tracking degree-day accumulations for plant growth.
Continue weekly monitoring of plant growth.
Consider adjusting nitrogen, irrigation management, and application timing and rate of plant growth regulators.
Continue monitoring for armyworms:
- Treat if needed according to Cotton Pest Management Guidelines.
Start sampling plant terminals for bollworms.
Continue monitoring for spider mites, aphids, and whitefly:
- Keep records
- See photo identification page for their natural enemies.
- Treat if needed according to Cotton Pest Management Guidelines.
Continue sweep net sampling and square retention monitoring for lygus bug activity:
- Keep records
- Treat if needed according to Cotton Pest Management Guidelines.
Other pests you may see:
- Beet armyworm
- Cabbage looper
- Saltmarsh caterpillar
- Stink bugs