Fenvalerate 20% EC Insecticide
Fenvalerate is a fast-acting synthetic pyrethroid insecticide used for the management of several important agricultural insect pests.
Fenvalerate 20% EC Behavaran is formulated as an emulsifiable concentrate containing
200 g/L Fenvalerate. The product belongs to the pyrethroid group and is classified in
IRAC Group 3A.
Behavaranco
Fenvalerate acts through both
contact and ingestion, providing rapid knockdown activity against susceptible insects.
Product Specifications
| Specification |
Details |
| Active Ingredient |
Fenvalerate |
| Concentration |
20% |
| Active Ingredient Content |
200 g/L |
| Formulation |
EC |
| Chemical Group |
Pyrethroid |
| IRAC Group |
3A |
| Product Type |
Insecticide |
| Packaging |
1000 ml |
| Manufacturer / Supplier |
Behavaran Zarrin Mozhdeh |
These specifications match the current Behavaran product page.
Behavaranco
What Is Fenvalerate?
Fenvalerate is a broad-spectrum pyrethroid insecticide used against various chewing and sucking insect pests.
It acts rapidly on susceptible insects and can provide effective knockdown when the target pest and crop are covered by the registered product label.
Fenvalerate is used in agricultural pest-management programs on field crops, forage crops and fruit trees.
Fenvalerate Mode of Action
Fenvalerate acts on the insect nervous system by interfering with
voltage-gated sodium channels in nerve-cell membranes.
This disruption prevents normal nerve signal transmission, causing continuous nerve excitation, paralysis and eventual death of susceptible insects.
Because Fenvalerate belongs to
IRAC Group 3A, it should be rotated appropriately with insecticides having different modes of action to reduce resistance pressure.
Behavaranco
Main Benefits of Fenvalerate
Fenvalerate offers several useful characteristics in agricultural pest-management programs:
- fast knockdown activity
- contact and ingestion action
- broad activity against several agricultural insect pests
- suitability for field crops and fruit trees
- useful against both chewing and sucking insects where registered
- suitable for resistance-rotation programs
- emulsifiable concentrate formulation for spray application
Registered Uses of Fenvalerate
According to the current Behavaran product information,
Fenvalerate is registered in Iran for the following uses:
Behavaranco
| Crop |
Target Pest |
Application Rate |
| Sugar Beet |
Prodenia / Beet armyworm |
1 L/ha |
| Alfalfa |
Alfalfa weevil |
1 L/ha |
| Fruit Trees |
Leafminer |
500 ml per 1000 L of spray solution |
Application must always follow the approved product label, local regulations and professional agronomic recommendations.
Fenvalerate for Beet Armyworm
Fenvalerate is used for the management of
beet armyworm in sugar beet.
Beet armyworm larvae can feed heavily on foliage and may reduce plant vigor and photosynthetic capacity when populations become high.
Effective management depends on:
- regular field monitoring
- early identification of larval populations
- correct application timing
- adequate spray coverage
- following the registered application rate
According to the current product information, the registered rate is
1 L/ha.
Behavaranco
Fenvalerate for Alfalfa Weevil
Fenvalerate is also registered for the management of
alfalfa weevil.
Alfalfa weevil larvae feed on foliage and can reduce forage quality and biomass when infestations are severe.
Treatment decisions should be based on field monitoring and pest pressure rather than routine spraying.
The current Behavaran page lists an application rate of
1 L/ha for alfalfa weevil.
Behavaranco
Fenvalerate for Leafminer Control
Another registered use of
Fenvalerate is the control of leafminer pests in fruit trees.
Leafminer larvae feed within leaf tissues, producing characteristic mines and potentially reducing effective leaf area.
According to the Behavaran product page, the listed application rate is:
500 ml per 1000 L of spray solution.
Behavaranco
Good spray coverage and correct treatment timing are especially important for effective leafminer management.
International Uses
The current Behavaran page also notes that Fenvalerate is used internationally against aphids in wheat and various chewing and sucking insect pests in field crops and fruit trees.
Behavaranco
Actual use should always depend on local registration and the approved product label.
Best Time to Apply Fenvalerate
Fenvalerate should be applied when pest monitoring shows that treatment is justified.
Important factors include:
- pest population density
- insect life stage
- crop growth stage
- weather conditions
- presence of beneficial insects
- economic treatment thresholds
Applications should be timed to target susceptible pest stages before severe crop damage occurs.
Fenvalerate in Integrated Pest Management
Fenvalerate should be used as part of an
Integrated Pest Management (IPM) program rather than as the only pest-control method.
Useful IPM practices may include:
- regular pest monitoring
- accurate pest identification
- conservation of beneficial insects
- cultural control measures
- proper crop sanitation
- avoiding unnecessary pesticide applications
- rotating insecticides with different modes of action
Because Fenvalerate is a broad-spectrum pyrethroid, careful application can help reduce unnecessary effects on beneficial organisms.
Resistance Management
Fenvalerate belongs to IRAC Group 3A.
Repeated use of insecticides with the same mode of action may increase the risk of resistance development.
For better resistance management:
- avoid repeated consecutive applications of Group 3A insecticides
- rotate with products from different IRAC groups
- use the registered application rate
- apply only when pest pressure justifies treatment
- integrate chemical control with non-chemical IPM practices
Pre-Harvest Interval
The current Behavaran product page lists an approximate
PHI of 20 days.
The exact interval should always follow the approved crop-specific product label.
Environmental and Safety Considerations
The existing product information states that Fenvalerate is highly hazardous to
honeybees, fish, aquatic organisms and beneficial arthropods.
Therefore:
- avoid application during flowering where pollinators are active
- prevent spray drift into water bodies
- avoid contamination of irrigation channels
- protect field margins and beneficial-insect habitats
- wear appropriate personal protective equipment
- store the product in a cool, shaded location
- dispose of pesticide residues and empty containers according to local regulations
The current Behavaran page also recommends avoiding application within
6 meters of field borders to reduce impacts on pollinators and natural enemies.
Frequently Asked Questions About Fenvalerate
What is Fenvalerate?
Fenvalerate is a synthetic pyrethroid insecticide with fast contact and ingestion activity against susceptible agricultural insect pests.
What formulation is Fenvalerate Behavaran?
The current product is
Fenvalerate 20% EC, containing
200 g/L active ingredient.
What IRAC group does Fenvalerate belong to?
Fenvalerate belongs to
IRAC Group 3A.
What pests is Fenvalerate used for?
The Behavaran product page lists beet armyworm, alfalfa weevil and fruit-tree leafminer among the registered uses.
What is the package size?
The current Behavaran product page lists
1000 ml packaging.
Is Fenvalerate systemic?
Fenvalerate is primarily a
contact and ingestion pyrethroid insecticide, rather than a systemic insecticide.
