tomato fruitworm

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*This is an excerpt from Tomato Insect Pests and Scouting Methods, ANR-2206.

Plant Injury

Can be a major problem early on because it severs seedlings while living at the soil-air interface; beetles are very attracted to grassy crops or weedy landscapes

Sampling Method & Economic Threshold (ET)

  • Deploy germinating seed bait stations (wheat-corn mixture) at several locations in fields with a history of wireworm attack.
  • Use soil cores (sample around small tomato seedlings/transplants) and wash the dirt to recover larvae. Use larval size and number as an indicator of life stage and insect pressure.
  • ET = 1 wireworm per seed bait (average from several baits across a field)

ET = Economic threshold (number of insects above which there will be economic losses)

Read more about tomato pests and scouting methods.

 

 

*This is an excerpt from Tomato Insect Pests and Scouting Methods, ANR-2206.

Plant Injury

Leaves are damaged but fruits are spared; minor pest

Sampling Method & Economic Threshold (ET)

  • Study the leaves directly from 10 plants per location and look for larvae (cabbage looper larvae have two pairs of abdominal prolegs).
  • Look for fecal pellets on leaves.
  • ET = 5 looper larvae per 10 plants at any plant stage or defoliation greater than 20%

ET = Economic threshold (number of insects above which there will be economic losses)

Read more about tomato pests and scouting methods.

 

*This is an excerpt from Tomato Insect Pests and Scouting Methods, ANR-2206.

Plant Injury

Causes serious damage to blossoms and fruits similar to that of stink bugs. Also introduces yeast inside fruit during deep probing.

Sampling Method & Economic Threshold (ET)

  • Influx of these insects appears to be heavy during July and August. Trap crops of sunflower and sorghum (refer to Alabama Vegetable IPM website) allow early detection of bugs.
  • Scout for egg masses that may be laid in a row on fruits, leaves, and plant stalks.
  • Distribution of bugs can be highly clumped.
  • ET = unknown in tomatoes; follow stink bug recommendation.

ET = Economic threshold (number of insects above which there will be economic losses)

Read more about tomato pests and scouting methods.

 

 

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