Yellow-Margined Leaf Beetle
YMLB

Related Topics

*This is an excerpt from Insect Pest Scouting for Crucifer Crops, ANR-2241

Identification

Brightly colored bugs with piercing-sucking mouthparts (orange, red, and yellow patterns on adults); eggs are barrel-shaped with black bands on top; overwinter as adults.

Plant Injury

Nymphs and adults feed on leaf veins causing extensive browning or wilting of leaves; extensive feeding will cause plants to wilt and die.

Sampling Method & Economic Threshold

  • Look for colorful adults or masses of nymphs feeding together.
  • ET (Georgia) = 1 adult bug per 10 plants.

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

 

Read here to learn more about Insect Pest Scouting for Crucifer Crops.

Download a PDF of Insect Pest Scouting for Crucifer Crops, ANR-2241

 

*This is an excerpt from Insect Pest Scouting for Crucifer Crops, ANR-2241

Identification

Small insects that jump readily using muscles in their hind legs; hind legs appear swollen.

Plant Injury

Common in spring on seedlings; shot-hole feeding symptoms on small leaves.

Sampling Method & Economic Threshold

  • Use a good quality magnifying lens when scouting seedling.
  • Shot-hole leaf injury is distinctive.
  • Scout on field edges that usually get the worst damage from flea beetles.
  • No economic thresholds are available.
  • Young plants are susceptible to flea beetle damage.

 

Read here to learn more about Insect Pest Scouting for Crucifer Crops.

Download a PDF of Insect Pest Scouting for Crucifer Crops, ANR-2241.

 

*This is an excerpt from Citrus Pest Identification and Management Guide, ANR- 2270.

The most characteristic symptom of HLB is blotchy mottling that appears asymmetrically on the leaf blade. Green islands may also occur; these are small, circular, dark green dots that contrast with the light yellow/green background. Foliar symptoms that resemble nutrient deficiencies may be present. A tree may exhibit yellow shoots or other nutrient deficiency symptoms on one or more branches randomly in the canopy. Fruit may be small and lopsided or ripen backward, with the stylar end remaining green as the fruit colors.

Management tips: Citrus greening has not been found in Alabama to date. If citrus greening is suspected, contact your local diagnostic lab.

 

Read more about Citrus Pest Identification and Management Guide.

Download a PDF of Citrus Pest Identification and Management Guide, ANR- 2270.

Did you find this helpful?