Product Name: Dichlorvos 50% EC (Emulsifiable Concentrate)

Trade Name: DDVP / Dedvap
Group: Organophosphate
WHO Toxicity Class: II – Toxic and Harmful
Type: Insecticide with contact, stomach (ingestive), fumigant, and penetrative action

Pre-Harvest Interval (PHI): 3 days

Application Management:

• Dichlorvos inhibits blood cholinesterase activity.
• It has a strong knockdown (rapid action) effect with a short residual protection period (2–5 days).
• Due to its high vapor pressure, residues dissipate within three days, making it suitable for use on early-harvest and greenhouse crops.
• Despite being non-systemic, Dichlorvos is highly effective against sucking insects, as well as caterpillars, beetles, and flies (especially in mushroom cultivation).
• Best results are achieved when the ambient temperature is between 15–25°C and the target area is relatively dry.
• The insecticidal effect is mainly through vapor action and does not affect insect eggs.

Compatibility and Mixing Guidelines:

• At the recommended dosage, Dichlorvos is generally safe for crops, except chrysanthemums, which may show phytotoxicity (leaf burn) under certain conditions.
• Do not apply other insecticides, especially sulfur-based formulations, one day before or after Dichlorvos application.
• Avoid mixing with alkaline compounds, quinomethionate (Morestan), or polysulfides.
• Do not use as a domestic insecticide.
• When spraying cucumbers, avoid direct application on the growing plants — apply between crop rows instead.

Target Crops and Application Rates:

Notes:

• Avoid application under high humidity or extreme temperatures.
• Follow protective measures during mixing and spraying due to acute toxicity risk.
• Dichlorvos should only be used on the listed crops and pests under the supervision of agricultural specialists.