Product Name: Cypermethrin 40% EC (Emulsifiable Concentrate)

Trade Name: Ripcord
Group: Pyrethroid
WHO Toxicity Class: II – Toxic and Harmful
Type: Non-systemic insecticide with contact and ingestive (stomach) action; also exhibits anti-feeding properties

Pre-Harvest Interval (PHI):

• Apple and Cotton: 21 days

Application Management:

• Cypermethrin acts by interfering with sodium channels in the insect’s nerve cells, thereby disrupting nerve impulse transmission.
• Its effect is primarily contact-based, and efficacy depends on the thoroughness of spray coverage.
• It provides fast and persistent control, highly effective against larval and adult stages of Lepidoptera (moths).
• Protects the aerial parts of plants for several weeks, covering the plant’s vulnerable growth stages.
• The active ingredient penetrates plant tissues, enabling control of leaf miners and other internal feeders.
• In field crops, repeat spraying is recommended every 10–14 days. For whiteflies and greenhouse pests, intervals may be shorter.
• In cereals, apply in autumn for control of cereal aphids, and in spring or summer for ear aphids.
• For flea beetles, cabbage butterflies, and cabbage aphids, spraying should begin upon the first signs of infestation, with repeat treatments as needed.

Compatibility and Mixing:

• Compatible with most insecticides and fungicides, except alkaline compounds such as Bordeaux mixture.

Target Crops and Application Rates:

Notes:

• Ensure uniform coverage for optimal contact efficacy.
• Avoid spraying during high wind or extreme heat.
• Rotate with insecticides from different chemical groups to prevent resistance development.