Cabbage Maggot Observed Recently

Friday, June 13, 2014

 Cabbage maggot at base of wilted plant.

Cabbage maggot pressure continues to be very high this growing season.  Growers need to apply insecticide at cole crop transplanting and then within 2-3 weeks.  It is important to ensure that PHI is met.  Aside from chemical control, crop rotation contributes to keeping populations low.  Fall tillage to bury crop residues and to expose over-wintering pupae helps reduce overwintering populations.

Floating row covers and insect nettings provide an effective barrier against this pest. Place the cover as soon as the transplants are set.  Do not use where the same crop family -- brassicas or onions -- were grown last year, as flies left in soil could emerge under the cover. Place cover over the crop at the time of seeding or transplanting and seal the edges with soil.