OCHROPLEURA IMPLECTA
Lafontaine
Pest Status: This pest caused economic
damage on dry-pick farms in Richmond in 1997 and 1998.
Life cycle and feeding habits: Moths
fly, mate, and lay eggs from mid-May until late June, and again from late
July until late August. Eggs hatch in about 10 days. Young larvae are dark
chocolate-brown with a white lateral stripe and mature larvae are paler
brown with a beige lateral stripe. Mature larva are 2.5 cm (1 inch) long.
Larvae have three pairs of front legs and five pairs of hind legs. Larvae
feed at night and are particularly fond of berries. They partially consume
unripe and ripe berries in July and August.
Monitoring: Sweep at night for larvae
in early June. Moths are attracted to pheromone traps for blackheaded fireworm
and to light traps.
Control: If many larvae are detected,
a registered insecticide for climbing cutworms is recommended. Consider
spot-spraying if the infested area can be defined. Damage will be minimized
if larvae are detected soon after hatching and if insecticide is applied
in the evening. Insecticides are most effective when larvae are small.
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Ochropleura
implecta
larva |
Ochropleura
implecta
moth |
©2000 Minister of Public Works and Government Services Canada
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