Definition / Product Overview
Fastac® 11 is a non-systemic insecticide formulated as an Emulsifiable Concentrate (EC).
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Active ingredient: Alpha-cypermethrin at 11% w/w
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It belongs to the pyrethroid class of insecticides, which generally act on the insect nervous system.
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Mode of action: primarily by contact and ingestion (stomach poison).
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It is broad-spectrum, meaning it’s effective against a variety of insect pests.
Uses / Target Pests
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Fastac 11 contains alpha-cypermethrin 11% w/w, a pyrethroid insecticide.
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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.
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It is effective against a variety of pest insects, especially on crops like rice and other field crops.
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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.
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The product is used by mixing with water and spraying over the crop to cover foliage.
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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.
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The re-entry interval (REI) — after spraying, one should avoid entering the treated area for 24 hours.
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For some crops, there is a harvest waiting period: e.g. for cocoa, “do not harvest crop at least 7 days after last spray.”
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� Safety & Environmental Notes
From the Safety Data Sheet and other sources:
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Fastac 11 is flammable (liquid & vapour).
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It causes skin irritation, serious eye damage, and may cause respiratory irritation if inhaled.
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It is toxic if swallowed and harmful if inhaled.
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Prolonged or repeated exposure can cause damage to peripheral nervous system.
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It is very toxic to aquatic life, with long-lasting effects.
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Users should use personal protective equipment (PPE) — gloves, eye protection, protective clothing — and take care not to contaminate waterways.
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� Application / Practical Use Notes
From the information available:
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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.”
-
� Safety & Environmental Notes
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.
