Fastac® 11 is a non-systemic insecticide formulated as an Emulsifiable Concentrate (EC).
Active ingredient: Alpha-cypermethrin at 11% w/w
It belongs to the pyrethroid class of insecticides, which generally act on the insect nervous system.
Mode of action: primarily by contact and ingestion (stomach poison).
It is broad-spectrum, meaning it’s effective against a variety of insect pests.
Fastac 11 contains alpha-cypermethrin 11% w/w, a pyrethroid insecticide.
It is a non-systemic insecticide, meaning it acts by contact and ingestion (stomach poisoning) — insects are killed when they touch or consume the treated surfaces.
It is effective against a variety of pest insects, especially on crops like rice and other field crops.
Examples of pests controlled include:
• Green leafhoppers (Nephotettix virescens)
• Rice leaf folder (Cnaphalocrocis medinalis)
• Stem borer (Chilo suppressalis)
• Armyworm / leaf-feeding caterpillars (Spodoptera litura)
• Other chewing insects such as leaf-miners, borers, etc.
On the BASF Malaysia site, Fastac 11 is promoted as a broad-spectrum insecticide with fast knock-down effect and “no phyto, safe to crop” (i.e. minimal phytotoxicity) when used properly.
The product is used by mixing with water and spraying over the crop to cover foliage.
There are guidelines for crop types with specific rates. For example, for cocoa pests, the label suggests 5 ml per 10 L of water; for durian mealybug, 4 ml per 10 L etc.
The re-entry interval (REI) — after spraying, one should avoid entering the treated area for 24 hours.
For some crops, there is a harvest waiting period: e.g. for cocoa, “do not harvest crop at least 7 days after last spray.”
From the Safety Data Sheet and other sources:
Fastac 11 is flammable (liquid & vapour).
It causes skin irritation, serious eye damage, and may cause respiratory irritation if inhaled.
It is toxic if swallowed and harmful if inhaled.
Prolonged or repeated exposure can cause damage to peripheral nervous system.
It is very toxic to aquatic life, with long-lasting effects.
Users should use personal protective equipment (PPE) — gloves, eye protection, protective clothing — and take care not to contaminate waterways.
From the information available:
The product is used by mixing with water and spraying over the crop to cover foliage.
There are guidelines for crop types with specific rates. For example, for cocoa pests, the label suggests 5 ml per 10 L of water; for durian mealybug, 4 ml per 10 L etc.
The re-entry interval (REI) — after spraying, one should avoid entering the treated area for 24 hours.
For some crops, there is a harvest waiting period: e.g. for cocoa, “do not harvest crop at least 7 days after last spray.”
From the Safety Data Sheet and other sources:
Fastac 11 is flammable (liquid & vapour).
It causes skin irritation, serious eye damage, and may cause respiratory irritation if inhaled.
It is toxic if swallowed and harmful if inhaled.
Prolonged or repeated exposure can cause damage to peripheral nervous system.
It is very toxic to aquatic life, with long-lasting effects.
Users should use personal protective equipment (PPE) — gloves, eye protection, protective clothing — and take care not to contaminate waterways.
Malaysia
