Ambyseius swirskii
whitefly predator

Amblyseius swirskii is a predatory mite originating in the south eastern Mediterranean regions and very well suited for hot climate. It is a general predator nourished by pollen but also by various small organisms, particularly the eggs and young stages of white flies, and the small larvae of thrips.

As other predatory mites of the same genus, which you cannot distinguish with the naked eye, its body is pear shaped and white hyaline and may change depending on its diet. Thanks to its versatile diet, A.swirskii is able to establish easily in various crops such as peppers, eggplant, cucurbitaceae and others, especially in the warmer and brighter seasons. On the contrary its performance declines in fall and winter periods.

The development cycle is rather quick and it has been noted that it has a demographic response in the presence of greater availability of pollen or live prey. Its main use is in biological control programs against white flies where, under the conditions of greatest risk, it is recommended in combination with other antagonistic insects with a more specific action (in particular Orius laevigatus and Eretmocerus eremicus).

Amblyseius swirskii is available in tubes of 50,000 or 250,000 but also in sachets for controlled release and it must be introduced early, to anticipate its development in the cultivation. The rate generally may vary from 50 to 100 individuals per m2, depending on the conditions.