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How to recognize mites

Mites are not insects, but belong to the arachnids, the group of spiders. The adult stages have four pairs of legs and younger stages only have three pairs of legs. While insects usually have antennae, mites lack antennae. Mites have many host plant species, both indoors and outdoors. They feed by sucking plant saps from the leaves. This results in small spots and discolorations on the leaves, and deformations of plant growth tips. During heavy infestation, leaves can die off and drop early.

Two-spotted spider mite Tetranychus urticae group
A plant overrun by two-spotted spider mite

Mite damage

Spider mites: Most well-known is the two-spotted spider mite, which is light gray-green colored with two characteristic dark spots on the flanks. During winter they can turn red. Eggs are deposited on the underside of the leaf and are usually protected by silk threads. During heavy infestation, entire plant tops can be covered by silk threads. Other dark red spider mites that can be found on leaves are citrus spider mite and European red mite.

False spider mites: These tiny red mites mainly occur on leaves. They hardly move, sitting quietly alongside leaf veins on the upper or underside of the leaves. With a good magnifying glass, they are barely visible. They can cause a lot of damage: rust brown discoloration of plant tissue starting along the veins, but later expanding across the leaves. This will result in leaf drop.

Tarsonemid mites: This is a completely different group of mites that usually can be found on the upper parts of plants. The mites are too small for the naked eye and can only be seen with a magnifying glass. The damage is clearly visible: leaf distortion on plant tips. In case of severe infestation atrophy of the upper leaves and growth inhibition occurs. The mites are very small and translucent. They are not very mobile, so they aggregate on growth tips, hidden between the young leaves.

Two-spotted spider mite Tetranychus urticae - damage
Two-spotted spider mites forming web

Common mite species

Two-spotted spider mite
False spider mite
Tarsonemid mite
Citrus
mite

How to control mites

Spider mite is the most well-known species of mite that damages many crops. The damage starts as spots on the leaves, but can end up in totally webbed in plant heads with many young and adult mites. When damage is clearly visible, the predatory mite PHYTOSEIULUS PERSIMILIS or SPIDEX is the best choice for control. PHYTOSEIULUS PERSIMILIS is specialized in clearing out spider mite infestations. The predatory mite SPICAL can be used preventively, because it can survive a while without spider mites. They are less suitable for clearing out established populations of spider mite.  The gall midge Feltiella acarisuga is a very capable biological control agent under high temperatures and humidities, especially when spider mites occur in large groups. The control of citrus mites and tarsonemid mites requires other predatory mites, such as BARKERI, SWIRSKI-MITE and LIMONICA. The gall midge SPIDEND is a very capable biological control agent under high temperatures and humidities, especially when spider mites occur in large groups.  The gall midge can also occur naturally in green houses when no pesticides are used. The predatory mite ANDERSONI is the only product that is effective under low temperatures. These predatory mites control several species of mites and is very suitable for outdoor use. 

Predatory mite TETRIX - Phytoseiulus persimilis attacking biological control two-spotted spider mite
Phytoseiulus persimilis: A predatory mite effective against two-spotted spider mite

Our products against mites

PHYTOSEIULUS PERSIMILIS

Effective against
- Two-spotted spider mite

ANDERSONI

Effective against
- Two-spotted spider mite
- Tarsonemid mite
- Citrus mite

SWIRSKI MITE - Amblyseius swirskii, roofmijt

SWIRSKI-MITE

Effective against
- (False) spider mite
- Several thrips species

- Whitefly

SPIDEX

Effective against
- Two-spotted spider mite

THRIPEX - Neoseiulus cucumeris roofmijt tegen trips

THRIPEX

Effective against
- Two-spotted spider mite
- Tarsonemid mite
- Several thrips

SPIDEND gall midges against spider mite

SPIDEND

Effective against
- Two-spotted spider mite

LIMONICA - Amblydromalus limonicus, roofmijt

SPICAL

Effective against
- Two-spotted spider mite
- Tarsonemid mite
- Citrus mite

BARKERI

Effective against
- Tarsonemid mite

LIMONICA - Amblydromalus limonicus, roofmijt

LIMONICA

Effective against
- Thrips
- Whitefly
- Tarsonemid mite