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How to Manage Pests

UC Pest Management Guidelines

| More pests | More crops | About guidelines |

Cotton

Crop Rotation

(Reviewed 1/08, updated 1/08)

In this Guideline:

Rotate your cotton crop as needed with other field or vegetable crops to maintain soil productivity and reduce the incidence of various cotton pests such as nematodes, Verticillium wilt, seedling diseases, pink bollworm and other diseases. Different rotational crops impart different benefits to the soil and therefore to subsequent seasons of cotton production:

  • Pest resistant crops: suppression of various cotton pests
  • Cereals: have fibrous root systems that loosen compacted soil
  • Legumes (such as alfalfa, beans): add nitrogen to soil
  • Grain corn: adds organic matter to soil
  • Vegetable crops: contribute high fertilizer carryover
ROTATION CROPS FOR COTTON
Rotational Crops Nematodes Seedling Diseases
root knot nematode Verticillium wilt Rhizoctonia and Pythium Thielaviopsis basicola Fusarium wilt
small grains
and summer fallow 		satisfactory satisfactory satisfactory some some
winter small grains
grown as silage 		some some some some some
resistant cowpea cvs. California Blackeye CB 5, CB 27, and CB 46 satisfactory satisfactory minimal some some
corn satisfactory satisfactory satisfactory satisfactory some
sorghum/sudangrass satisfactory satisfactory satisfactory satisfactory some
alfalfa satisfactory some satisfactory some some
onions/garlic minimal satisfactory minimal satisfactory some
clean fallow (weed free) some some some some minimal
root knot resistant
cultivars of
processing tomatoes 		some minimal minimal minimal race 1-satisfactory
race 4 –some
Key to ratings
satisfactory = significant suppressive activity but does not control
some = has an inhibitory effect but less than satisfactory
minimal = has very little effect

PUBLICATION

[UC Peer Reviewed]

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 County
D. R. Haviland, UC IPM Program, Kern County

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