Arachnida, Acari, Tarsonemidae .
Description, Biology, Life Cycle, Damage, Common Names, Images
Host plants: strawberry and various ornamentals, especially cyclamen.
- Adult females usually already mated represent the overwintering forms. During the winter a high mortality occurs among hibernating females. Hibernating places are dead folded leaves and smal cavities on the buds or petioles.
First generation takes one month but during the summer months each generation is shorter (10 days). Seven generations can take place every year. P. pallidus prefers high relative humidities (80%-90%) and temperatures above 20°C. This species avoids light, taking refuge in the centre of more dense vegetation in the host, the so called "heart" or crown of the plant.
Light or moderate attacks produce wrinkled or undulated upper surfaces of the leaves; small warts can also be seen there. The attacked plant becomes bushy as the leaf petioles cannot expand. Severe attacks result in severe stunting of the plant. Young leaves do not open completely and remain small with very short petioles. Later becoming pale or yellowish, hard and brittle. Finally they turn brown and die (*) .
- Host in Portugal are, by order of importance of damage: Cyclamen spp., african violet (Saintpaulia ionantha) and strawberry.
- In the UK, P. pallidus is recognized as a pest of various plants, usually as various races or subspecies, e.g. P. pallidus pallidus ("cyclamen mite") on cyclamen, etc., P. pallidus fragariae ("strawberry mite") on strawberry.
DE: Erdbeermilbe, Erdbeerweichhautmilbe ES: Tarsonemido comun FR: Tarsonème commun IT: Acaro pallido del ciclamino PT: Tarsonemo do ciclamen GB: Strawberry mite, Cyclamen mite
HYPPZ on line : Species (scientific name), Pests (common names), Glossary, Crops.