STRAWBERRY VARIETY YIELDS AND SUSCEPTIBILITY TO TARNISHED PLANT BUG AND STRAWBERRY BUD WEEVIL
Twelve strawberry varieties established in matted row plots in 1993 were treated with insecticides for tarnished plant bug and strawberry bud weevil or left untreated during 1994. Honeoye and Cavendish had the highest yields of marketable fruit. Oka, Jewel, Chambly, and Kent also had relatively high yields. Lateglow, Blomidon, Seneca, NY 1424, Settler, and Governor Simcoe had lower yields than the other varieties. Tarnished plant bug populations were very small during the 1994 season and the injury levels observed were relatively low. Feeding pressure on the plants may have been too low for all differences in susceptibility between varieties to be expressed. Governor Simcoe, Cavendish, and Oka had the lowest injury levels. Kent, Lateglow, and Seneca had the highest levels of injury. Insecticide sprays significantly reduced injury for all varieties except Cavendish and Governor Simcoe. The number of flower buds killed by strawberry bud weevil differed very little between varieties and spray treatments. No obvious differences in susceptibility to this injury were observed in this trial.