What kills European corn borer?

What kills European corn borer?

Spray plants with an approved insecticide designed to combat European corn borers, such as Ortho® Outdoor Insect Killer Ready-to-Spray. If you choose to spray, be sure to thoroughly coat the undersides of leaves, where corn borer moths lay their eggs.

How do you identify European corn borer?

Identification of larvae (damaging stage)

  1. Young larvae are initially dirty white; color may change to light tan or pinkish gray as larvae mature.
  2. Skin is smooth and free of hairs with numerous round dark spots scattered over top and sides.
  3. Head is dark brown to black.

What does European corn borer do to corn?

Damage to corn occurs as larvae feed on the leaves and bore into corn stalks and ear shanks. European corn borer tunneling (Figure 1) results in reduced yield potential, broken stalks, and dropped ears. Economic ECB treatment thresholds for use with corn varieties grown for grain have been developed.

What are the plant damage caused by corn borer?

Damage: Corn borer feeding weakens plants and slows their growth. Severely damaged plants often snap off and fall over. When peppers or mature corn ears are damaged, they are prone to rot.

Which predator will eat corn borer eggs?

Some general predators, such as lady beetles and lacewings, feed on southwestern corn borer eggs and larvae. Early planted corn may escape second generation damage.

How do you control corn borer?

Controlling Corn Borers in Corn Other known corn borer control methods include using garden insect sprays to kill young caterpillars. It is important to spray plants every five days until tassels start to brown. Another beneficial corn borer treatment method involves keeping garden and surrounding areas free of weeds.

What does a corn borer moth look like?

The adult borer is a night-flying yellowish-brown colored moth (1 inch wingspan) with dark wavy bands across its wings. Note : The European corn borer most likely arrived in the United States during the early 1900’s in imported corn which was used to make brooms.

Where is the European corn borer found?

First found in North America near Boston, Massachusetts in 1917, European corn borer, Ostrinia nubilalis (Hübner), now has spread as far west as the Rocky Mountains in both Canada and the United States, and south to the Gulf Coast states.

What do you spray on corn borers?

Foster says pyrethroids are the insecticides of choice for corn borer control and should be applied just before tassels emerge.

How do you manage European corn borer?

How To Control the European Corn Borer

  1. Use pheromone lures with wing traps to attract male corn borers and prevent mating before it occurs.
  2. Release Trichogramma moth egg parasites once flight is detected.

What is the biological control of corn borer?

The parasitoids (Trichogramma evanescens) was effective in reducing egg stage of corn borer and corn earworm. Dipel insecticide was effective in controlling the larvae of corn borer and corn earworm followed by thuricide insecticide.