Amblyseius Montdorensis

Exterior:

The female is oval-elongated and has 4 pairs of legs, its length more than 0.4 mm. The body is pale whitish, but the color can vary from pale yellow to yellowish-orange depending on the feeding. The legs are relatively long, especially the front pair. The dorsal shield has 17 pairs of setae, 3 pairs of which are larger and sharp-tipped. Spermateca (receptaculum seminis) has a bell-shaped calyx. There are 3 teeth on the movable cheliceral digit. Males are smaller than females, their chelicera has a specific form of spermatodactyl.

Life cycle

Life cycle has a standard type of ontogenesis for parasitoid mites with successively changed developmental instars: egg, larva, protonymph, deutonymph, adult (female or male).

Eggs

Eggs are pale whitish, the shape is elongated-oval. The surface of the egg is smooth and shiny, the length is about 0.15 mm. Eggs are laid on the underside of leaves.

Larvae

Larvae are pale from white to translucent color and have 3 pairs of legs.

Protonymphs and deutonymphs

In the 2d and 3d instars of pre-imaginal development protonymphs and deutonymphs have 4 pairs of legs. They are noticeably darker than larvae. Body length is 0.2-0.4 mm.

Influence of temperature on beneficial insects’ development rate

There are some strategies of A. montdorensis applying.

The preventive strategy is based on the planned hanging of paper or foiled hooked – sachets for gradual saturation of the crop with predators. Colonization of beneficial insects is carried out in several stages by hanging sachets with a guaranteed content of 125 or 250 movable predators on each 5th or 10th plant (vegetable crops) or 1 linear meter (ornamental crops). The predators come out of a small hole in the sachet every day for 5 weeks and don’t come back. There’s a feed mix inside sachets, it provides continuous breeding of predators, that is why sachets work for 5 weeks. Due to this miniature laboratory, it is possible to create a stable population of predators on plants even without the presence of pests, it is very important for the organization of the protection system in the winter-spring period because after opening the windows a mass of pests flies from outside.

The local strategy is designed for the effect of a «live insecticide» and is used during periods of pest population growth or for the rapid application on young seedlings, which have been planted near each other in the greenhouse. Beneficial insects are released at localized breeding outbreaks. For this purpose, the scattering substrate with different instars of predatory mites is used evenly across the surface of the crop. Applications are carried out once every biweekly or weekly for 50-100 individuals per m2 for a period of 3 to 8 weeks, and compatible chemicals can be used in parallel.

Recommended standards for Amblyseius montdorensis applying

Conditions and duration of storage

• Short-term storage: biomaterial (imago and nymphs) can be stored at low temperatures (10-15 °C) in a cooling chamber.

Bio Protection Package

• 1 litre – bottle contains 25,000 or 50,000 predatory mites;
• 5-litre paper bag contains 125,000 or 250,000 predatory mites;
• Paper/ foiled hooked– sachets – the box contains 500 sachets of 250 individuals or 1,000 sachets of 125 individuals. Foiled hooked- sachets are resistant to drying and wet treatments.
• Life Line 50-meter tape of hooked sachets. (Life Line may be produced according to the customer’s individual requirements).

Bioline AgroSciences Package