Verticillium Wilt: Potatoes

How to use TerrAvion imagery to combat Verticillium Wilt in potatoes.

Early death of potato vines due to Verticillium wilt is a common yield robbing problem for potato growers in the Midwest and Pacific North West.

Verticillium wilt usually leads to the decline of plant vigor 4 to 6 weeks earlier than normal maturity. Foliage in infected plants commonly shows various degrees of chlorosis and necrosis, and plants often show yellowing on lower leaves. Symptoms can look like and be confused with natural maturity, but the wilt occurs earlier in the season and in an uneven, patchy pattern. You can use TerrAvion imagery to identify areas of your field affected by Verticillium wilt and to aid in any corrective actions you and your agronomist may choose to take.

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In this image you see a potato field with a possible case of verticillium wilt/early death.

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In the NDVI image of this field, you can see more clearly a patch that looks to have reached maturity ahead of schedule.. However this field is still over 6 weeks away from maturity, and this path of seemingly mature growth is actually premature maturation caused by verticillium wilt. If you notice an irregularity such as this in one of your fields you may want to consider an in person inspection.

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If after ground truthing the image you find that the area has indeed been infected with verticillium wilt, you will want to consult with your agronomist to form a plan on how to combat the fungus.

How to Use TerrAvion Imagery to Identify Verticillium Wilt:

  1. Monitor your imagery for patchy areas of non-uniform growth and low vigor zones. Be sure to use all the available layers when studying your fields.
  2. If you notice any unexplained irregularities in your field, ground truth the imagery. Familiarize yourself with common issues specific to your crop and region to help you determine exactly what you are dealing with.
  3. If you determine that the irregular area of low vigor is the result of verticillium wilt, reference local agricultural publications and university studies to determine appropriate corrective measures.

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This is how you can use TerrAvion imagery to combat Verticillium wilt. Please visit TerrAvion.com for more information.