Brevipalpus

Brevipalpus, commonly known as false mites, false spider mites or flat mites, are a family of microscopic pest mites. The bites they inflict on leaves to feed cause significant damage to infested plants.

Host plants

Different subspecies attack a wide variety of plants. Cacti, succulents, orchids, citrus, and hoyas are among those at risk.

Screening

Brevipalpus bites cause necrosis and rust-colored spots on most affected plant species. Their toxic saliva causes deformations on leaves. Leaf discoloration and slowed growth of shoots and buds are also symptomatic. A very attentive eye might notice the presence of tiny insects and clusters of eggs, both orange in color.

Prevention

Brevipalpus is extremely contagious; transmission can occur through various objects and air currents. They are not adapted to continental climates and are exclusively associated with greenhouse cultivation. Quarantine, disinfection of cultivation equipment, and the introduction of natural predators are the most effective means of preventing a brevipalpus infestation. Sachets of Amblyseius swirskii are effective preventatives.

Treatment

Treating Brevipalpus can be challenging due to their small size. Thorough cleaning of the plant and application of contact insecticides have limited effectiveness against Brevipalpus, which remain partially protected. Thermal treatment through heat or cold is feasible for plants that can tolerate it. Amblyseius swirskii is an excellent choice of predator for treatment.

In severe cases, treatment may be very difficult, if not impossible, and complete elimination or pruning of the plant should be considered.