Cnephasia longana
Pest description and crop damage Yellow spindle-shaped larvae with brown heads and light stripes on each side of the back. They web and feed within terminal leaves.
Management-chemical control
- Bacillus thuringiensis (Xentari, Biobit, BT NOW, Javelin)-Xentari and Biobit at 0.5 to 2 lb product/A; BT NOW at 1 to 3.5 pints/A; Javelin at 0.25 to 1.5 lb product/A. PHI 0 days. REI 4 hr. Add an appropriate spreader-sticker to enhance control. Most effective on small, actively feeding larvae. OMRI-listed for organic use.
- methoxyfenozide (Intrepid 2F, Engame, Troubadour 2F, Vexer DRV, WithStand, Insurgent) at 0.06 to 0.16 lb ai/A. PHI 0 days graze; 7 days hay. REI 4 hr. Do not exceed 0.5 lb ai/A per year. Limit 1 treatment per cutting.