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 (Javelin WG) at 0.25 to 1.5 lb product/A. PHI 0 days. REI 4 hr. Addition of a spreader sticker may improve performance. Some formulations are OMRI-listed for organic use.
- malathion (Malathion 5EC) at 0.625 to 1.25 lb ai/A. PHI 0 days. Retreatment interval 14 days. REI 12 hr. Limit 2 treatments per cutting.
- methoxyfenozide (Intrepid 2F) 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.