Emamectin Benzoate 1.9% EC is a pesticide formulation that contains emamectin benzoate as the active ingredient. This formulation is primarily used for the control of various insect pests in agricultural, horticultural, and forestry settings. Here's a description of Emamectin Benzoate 1.9% EC:

Selective Action: Emamectin benzoate is relatively selective in its action, which means it has minimal impact on non-target organisms, including beneficial insects.

Systemic and Contact Action: Emamectin benzoate provides both systemic and contact action, making it effective against pests that feed on treated plants and those that come into direct contact with the product.

Residual Activity: This pesticide can offer residual protection against pests, ensuring continued control over time.

Diamondback Moth (Plutella xylostella): A major pest of cruciferous crops, such as cabbage, broccoli, and cauliflower.

Lepidopteran Pests: Various caterpillar species belonging to the Lepidoptera order are targeted. These can include armyworms, loopers, and other leaf-feeding caterpillars.

Tomato Hornworm (Manduca quinquemaculata) and Tobacco Hornworm (Manduca sexta): Pests of tomato plants and tobacco, respectively.

Codling Moth (Cydia pomonella): A significant pest of apple and pear orchards.

Fruit Borers: Emamectin benzoate is used to control fruit-boring caterpillars in various fruit crops, including apple, pear, and peach.

Leafrollers: Pests like the oblique-banded leafroller (Choristoneura rosaceana) that affect tree fruit crops.

Tobacco Budworm (Helicoverpa virescens): A pest of tobacco and other crops.

These caterpillar pests can cause extensive damage to a wide range of crops, and Emamectin Benzoate is valued for its efficacy against them. It is particularly effective in controlling lepidopteran larvae in agriculture, horticulture, and forestry settings. It is known for its relatively selective action against these pests, which minimizes the impact on non-target organisms, including beneficial insects.