Calculate the Danger of Tomato Spotted Wilt Virus in Peanut Fields
The Peanut Rx sheet offers growers a valuable tool for assessing a field’s disease risk.
The Peanut Rx sheet offers growers a valuable tool for assessing a field’s disease risk, including its risk for tomato spotted wilt virus (TSWV), using a simple four-step process that assigns points for various factors that can make the disease more likely.
| TSWV Risk Factors | Risk Points Assessed to Factors Range From |
|---|---|
| Variety Selection | 5 to 30 |
| Planting Date | 5 to 30 |
| Plant Population (final stand, not seeding rate) | 5 to 25 |
| Insecticide Used at Planting | 5 to 15 |
| Row Pattern | 5 to 50 |
| Tillage | 5 to 15 |
| Herbicide Use | 0 to 5 |
Once points are assigned and tabulated, growers can see the level of risk that a particular field has for TSWV.
| TSWV Levels of Risk | |
|---|---|
| Low Risk | 65 or less |
| Moderate Risk | 70 to 110 |
| High Risk | 115 or more |
With that information, growers can then formulate a management plant to mitigate the risk of TSWV on a field-by-field basis, including steps such as using less-susceptible varieties and the adjustment of planting dates.
For more detailed information about your TSWV, leaf spot or white mold disease risk index, talk to your local Syngenta representative or visit syngenta-us.com/peanut-doctor. You can find Peanut Rx sheets for four key U.S. peanut-growing regions on this website.
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