Alphabria
Fast pyrethroid knockdown across cereals, orchards, vineyard and row crops.
Alphabria is a contact and stomach-acting pyrethroid based on alphacypermethrin. It is the product to reach for when a pest population needs stopping now: knockdown is immediate, and the label spans the widest crop range in the Sembria insecticide portfolio — apple, cereals, sugar beet, corn, tomato, hazelnut, olive, vineyard and cotton. A single 14-day pre-harvest interval applies across every registered use, which keeps spray planning simple.
Characteristics
- Immediate knockdown by contact and ingestion
- The broadest crop and pest label in the range — 10 crops, 11 registered targets
- Consistent 14-day pre-harvest interval on every use
- Very low use rates: 15-50 ml/ha on most field crops
- IRAC Group 3A — rotation partner for Group 1B, 4A and 28 products
- Effective against both larvae and adults
How it works
Alphacypermethrin holds open the voltage-gated sodium channels of the insect nerve axon. The nerve fires repetitively and uncontrollably, producing the characteristic rapid knockdown, then paralysis and death. Activity is highest at lower temperatures, so early-morning and evening applications perform best. IRAC Group 3A.
Dosing
| Crop | Target pest | Dose | PHI (days) |
|---|---|---|---|
| Apple | Codling moth (Cydia pomonella), larvae | 20 ml/100 L water | 14 |
| Apple | Apple leafroller moth (Yponomeuta malinellus), larvae | 15 ml/100 L water | 14 |
| Wheat | Sunn pest (Eurygaster spp.), 1-3 nymph stages and adult | 15 ml/ha | 14 |
| Wheat | Wheat stem sawfly (Pachytychius hordei) | 15 ml/ha | 14 |
| Sugar beet | Tortoise beetles (Cassida spp.) | 20 ml/ha | 14 |
| Corn | Corn borer (Ostrinia nubilalis), larvae | 40 ml/ha, 3 applications at 15-day intervals | 14 |
| Corn | Corn earworm (Sesamia spp.), larvae | 40 ml/ha, 3 applications at 15-day intervals | 14 |
| Tomato | Tomato fruitworm (Helicoverpa armigera) | 50 ml/ha | 14 |
| Hazelnut | Hazelnut weevil (Curculio nucum) | 40 ml/ha | 14 |
| Olive | Olive fruit fly (Bactrocera oleae) | 25 ml/100 L water | 14 |
| Vineyard | Grape berry moth | 30 ml/100 L water | 14 |
| Cotton | Cotton bollworm (Helicoverpa armigera), larvae | 200 ml/ha | 14 |
Doses are indicative. The user is responsible for adjusting the dose to the growth stage of the crop and the conditions of the field. Apply under the guidance of an agricultural technician. Composition, method of application and dose may vary between countries for climatic, technical or legal reasons.
Application
How to apply
Apple leafroller: treat at 4 larval clusters per 100 leaves. Codling moth: follow the prediction and early warning system — the objective is to kill each generation of larvae before they enter the fruit. Cereals: apply 10 days after emergence from the soil, at stem elongation. Corn: start when the first eggs are detected and follow with two further applications at 15-day intervals. Hazelnut: treat at more than 2 weevils per 10 nuts. Vineyard: monitor weekly from flower-bud separation (about mid-April) until berries reach pea size; treat if damage is found on at least 1 of 25 vines. Olive fruit fly: monitor adults with McPhail pheromone traps and treat at 1% damage in table varieties, 6-8% in oil varieties.
Compatibility
Conduct a preliminary compatibility test before mixing with other plant protection products.
Always carry out a compatibility test before preparing a tank mixture.
Safety and handling
Flammable liquid and vapour. Harmful if swallowed, in contact with skin or if inhaled; causes skin irritation; may cause organ damage through prolonged exposure. Very toxic to aquatic life with long-lasting effects. Toxic to fish and bees — do not apply during flowering. Do not re-enter for 7 days. Antidote: phenobarbital or diphenylhydantoin.
Read the label before use. Do not use at home. Keep away from children, food and animal feed. Use only as recommended and at the recommended dose.
Plant protection product
This page is technical information, not an offer of sale. Availability and registration status vary by territory. Always read and follow the approved product label before use.
