Fenpyroximate

Fenpyroximate belongs to the phenylpyrazole chemical class and is a highly specialized acaricide with contact and stomach action.

Its mode of action involves the inhibition of electron transport in the mitochondria of pests, which effectively blocks cellular respiration processes.

The substance affects the nervous system of mites, causing paralysis and rapid mortality, which prevents further damage to cultivated plants.

A key feature of this substance is its strong "knockdown effect," resulting in the cessation of pest feeding within hours of application.

The compound exhibits translaminar activity, penetrating leaf tissues to provide protection not only on the surface but also on the underside of the leaf blade.

Fenpyroximate effectively controls all mobile developmental stages of herbivorous mites, including larvae, protonymphs, and adults.

The primary pests targeted by this product are spider mites, including the common spider mite and the European red mite.

It also shows high activity against gall mites, brown mites, and vine mites, which cause significant damage to crop yields.

The product is recommended for use on a wide variety of fruit, berry, and vegetable crops, such as apples, grapes, citrus, cucumbers, and tomatoes.

• Spider mites (Tetranychidae)
• Eriophyid mites (Eriophyidae)
• Tarsonemid mites (Tarsonemidae)

Application rates for fenpyroximate depend on the specific crop and the level of infestation, typically ranging from 0.5 to 1.0 liters per hectare.

Pre-harvest intervals vary depending on the specific product regulations and typically range from 20 to 30 days after the last application.

The number of treatments per season is strictly regulated and generally does not exceed two applications to avoid the development of mite resistance.

The working solution must be prepared immediately before application, ensuring thorough coverage of the leaf surface for maximum efficacy.

It is essential to monitor spray quality: droplets should be fine to ensure the product reaches both sides of the leaf, where pests often reside.

Fenpyroximate is classified as moderately hazardous, necessitating the use of personal protective equipment for skin and respiratory protection during handling.

Applications are prohibited during periods of active bee foraging, as the substance poses a risk to beneficial insects upon direct contact.

It is not recommended to rotate applications with other products of the same chemical class to prevent the development of cross-resistance.

Environmental conditions must be considered during application: high temperatures may reduce product stability, and precipitation immediately after spraying washes away the active ingredient.

Mixing the product with highly alkaline pesticides is not recommended, as this can degrade the active ingredient and result in a loss of efficacy.