Isoprocarb 20% EC – Fast-Acting Carbamate Insecticide for Hemipteran Pest Control

Technical Specifications

Mode of Action

Isoprocarb acts as:

• Contact poison: Kills pests on direct contact

• Stomach poison: Effective when ingested

• Vapor action: Shows limited fumigant effect in enclosed spaces

The compound inhibits acetylcholinesterase enzyme in the insect nervous system, causing rapid paralysis and death.

Target Pests & Crops

Major Controlled Pests

Rice:

• Brown planthopper (Nilaparvata lugens)

• Whitebacked planthopper (Sogatella furcifera)

• Green leafhopper (Nephotettix spp.)

Vegetables:

• Aphids (Myzus persicae, Aphis gossypii)

• Thrips (Thrips tabaci, Frankliniella occidentalis)

• Leafhoppers (Amrasca biguttula)

Orchards:

• Tea green leafhopper (Empoasca onukii)

• Citrus psyllids (Diaphorina citri)

Application Guidelines

Application Tips:

1. Apply at first sign of pest infestation

2. Ensure thorough coverage of both leaf surfaces

3. Best applied in early morning or late afternoon

4. Avoid application during flowering to protect pollinators

5. Repeat applications at 10-14 day intervals if needed

Performance Characteristics

Key Advantages

• Rapid knockdown (visible effects within 30 minutes)

• Good initial efficacy against nymphs and adults

• Moderate residual activity (5-7 days)

• Low phytotoxicity risk when used as directed

• Cost-effective solution for hemipteran control

Limitations

• Short residual period compared to neonicotinoids

• High bee toxicity (avoid flowering periods)

• Increasing resistance in some planthopper populations

Safety & Environmental Profile

Toxicity Data

• WHO Classification: II (Moderately hazardous)

• Acute oral LD50 (rat): 150-200 mg/kg

• Dermal LD50 (rabbit): >2000 mg/kg

• Aquatic toxicity: Highly toxic to fish (LC50 < 0.1 mg/L)

Protective Measures

• Required PPE: Chemical-resistant gloves, protective clothing, goggles, respirator

• Re-entry interval: 24 hours for field work

• Pre-harvest interval: 7-14 days depending on crop

• Buffer zones: Maintain 50m from water bodies

Resistance Management

To prevent resistance development:

• Rotate with insecticides from different IRAC groups (especially Group 4A neonicotinoids)

• Limit to 2 applications per season

• Combine with biological controls (e.g., Cyrtorhinus bugs for BPH)

• Use only when pest thresholds are exceeded

Packaging Options

Available in farmer-friendly packaging:

• 100ml, 250ml (smallholder packs)

• 500ml, 1L (medium farms)

• 5L, 10L, 20L (commercial/plantation use)

Storage Instructions

• Store in original container in cool, dry place

• Ideal storage temperature: 10-30°C

• Keep away from food, feed, and drinking water

• Do not store near open flames or heat sources

FAQs

Q: Is Isoprocarb effective against resistant planthoppers?
A: It shows varying efficacy depending on resistance patterns. Resistance monitoring is recommended.

Q: Can I mix Isoprocarb with fungicides?
A: Generally compatible with most fungicides except alkaline formulations. Always conduct a jar test first.

Q: How does it compare to imidacloprid for BPH control?
A: Faster knockdown but shorter residual activity than imidacloprid. Often used as a rotation partner.

Q: Is it safe for organic farming?
A: No, this is a conventional synthetic insecticide.