Maple (Acer)-Western flower thrips

Frankliniella occidentalis

Description, biology and damage Adults are yellow to yellow-brown, 0.05 inch in length, narrow, with wings. Larvae are smaller and wingless. Both stages feed on developing growth causing leaf distortion and black necrotic tissue. Most damage to maple occurs when thrips disperse from grass and hay fields as they are mowed or harvested in the summer.

For biology, life history, monitoring and management

See "Thrips" in:

Management-chemical control

See Table 1 in: