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Cotton > Year-Round
IPM Program >
Preplant to Planting > Select a Variety
Cotton
Select a Variety
Consider planting pest-resistant varieties if Verticillium, Fusarium, or root knot nematode have been
a problem in your fields in the past. Other options in varietal selection include transgenic cotton with herbicide
tolerance or Bt cotton to control certain caterpillar pests.
The tables below describe variety choices related to pest
management. New varieties become available regularly. If no data exists on a new variety that you would like to try,
then try the following:
- Talk to your local farm advisor or seed company representative about suitable varieties.
- As a test, plant 2 acres of the new variety if you have a known history of Verticillium or other target
pest in your field.
Table 1. Verticillium resistance in Acala, Non-Acala, and Pima varieties.
| Pest |
Cotton Variety |
| Acala Upland |
Non-Acala Upland |
Pima |
| Verticillium resistance |
A range of resistance exists within this group, but most have a high degree of resistance. |
A range of resistance exists within this group, but many are highly susceptible. |
Little is known about resistance. Variety trials in progress. |
Table 2. Varieties tolerant of other pests.
| Pest |
Variety |
Comments on tolerance |
| Root knot nematode |
Acala varieties: NemX and NemX HY (high yield) |
Not immune, but grow well in areas of high infestation. |
| Fusarium race 1 |
Acala varieties: NemX and NemX HY |
These root knot nematode-resistant varieties also have tolerance to Fusarium race 1. |
| Western yellowstriped armyworm, beet armyworm, and loopers |
Bollguard II transgenic
Non-Acala Upland
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Offers same suppression as the first generation Bts against pink bollworm, plus additional suppression of armyworm
and loopers. |
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