Couplet 15

10/25/2010 4:46:51 AM

10

15.
Midge tunnels on surface of soil and hollwed out seeds.

Insect may be:





SEED MIDGE






Photo by: Johnny Saichuk


SEED MIDGE
adults resemble small mosquitoes. They swarm over rice fields, levees, and roadside ditches. Eggs are laid in strings on the surface of open water. After emerging, the larvae move to the soil surface, where they live in spaghetti-like tubes contstructed from secreted silk, plant debris, and algae. The larvae develop through four instars before pupating underwater in tubes. The life cycle from egg to adult requires one to two weeks.

Facts:

  • Larvae feed on the embryo of germinating seeds or the developing roots of young seedlings.
  • Rice seed midges are a problem for water-seeded fields.

What you should look for:

  • Water-seeded fields should be scouted for midge damage 5 to 7 days after seeding.
  • Check for hollow seeds and chewing marks on the seed, roots, and shoots.
  • Midges are not a problem in rice more than 2 to 4 inches tall.

How you can manage rice seed midge:

  • Drain fields to reduce the number of midge larvae.
  • Avoid holding water in rice fields for more than 2 to 3 days before seeding.
  • Pre-sprout seed and avoid planting in cool weather.




BACK TO PREVIOUS PAGE




START OVER


For more information, please see the Rice section of the Insect Pest Management Guide on the LSU AgCenter's Management Guides webpage.

Rate This Article:

Have a question or comment about the information on this page?

Innovate . Educate . Improve Lives

The LSU AgCenter and the LSU College of Agriculture

Top