PEST

NAME
Cyclamen Mite
Phytonemus pallidus

ORDER
Acarina

Description of the Pest
This tiny eight-legged mite grows up to 0.2mm in length and not normally seen with the naked eye and has rasping mouth parts. Females lay many eggs, which hatch and reach maturity within ten days in the warmer months. Immature nymphs are simular to the adults. The microscopic mite has a gradual metamorphosis.



Appearance of the Pest
They congregate in the leaf, flower buds and stored cyclamen corms, during winter. In spring, they migrate back into the buds and leaves. Mites may spread via the movement of dead leaves, buds or corms. They initially appear in leaf and flower buds.

Period of Activity
Most active during hot humid periods, especially in tropical to temperate regions, where the insect may remain active throughout the year.

Susceptible Plants
There are many susceptible plant including Rhododendron, Begonia, Fuchsia, Cyclamen, Pelargonium,Gerbera, Saintpaulia, Hederaand Dieffenbachiaspecies.

Damage Caused
The flower buds may weather and fall prematurely or the flowers that open may be spotted or discoloured. The mites also congregate under mature leaves causing them to curl or pucker. The leaves become mottled, yellow and are eventually shed.

Control
This pest is distributed world-wide. Remove infested buds and leaves and destroy. Preventive measures include weed control and removal and destruction of crop residue infested plant material. Natural predators include ladybeetles and lacewing larvae help reduce numbers.

Chemical Control
Affected plants can be sprayed using contact or systemic insecticides. The mites are well protected in the buds and may be difficult to kill.
Note
Always read the label for registration details and direction of use prior to application of any chemicals.