Pest description and crop damage Small, white, centipede-like animals with 6 to 12 pairs of legs, rapidly vibrating antennae, and two short projections at rear end. They prune rootlets, feed on root hairs, reduce stands and plant vigor, and can delay harvest in heavily infested plant roots.
- chlorethoxyfos/bifenthrin (Smart Choice 5G) at 0.15 to 0.175 oz ai/1,000 row ft. REI 2 days or 3 days where annual rainfall is less than 25 inches. T-band over the row or apply in furrow. Apply with Smartbox system. Do not exceed one application per year.
- chlorpyrifos (Lorsban 15G) at 0.075 lb ai/1,000 row ft at planting. Apply as a band treatment over the row at planting and incorporate to 0.5 to 1 inch. PHI 21 days. REI 24 hr. Do not exceed 0.15 lb/1,000 row ft or 2 lb ai/a per season.
RESTRICTED USE IN OREGON.
- ethoprop (Mocap 15G) at 1.2 oz ai/1,000 row ft. REI 48 hr or 72 hr where annual rainfall is less than 25 inches. One application per season. Incorporate in band above seed row.
- terbufos (Counter 15G) at 0.056 to 0.075 lb ai/1,000 row ft. REI 48 hr or 72 hr if annual rainfall is less than 25 inches. Do not exceed 1.3 lb ai/a per season. Band or furrow at planting. Refer to label for aquatic advisory.
Biology and Control of Garden Symphylan