Search

Fruit tree red spider mite (Panonychus ulmi (Koch))

Fruit tree red spider mite is an important secondary pest of apple. The varieties Discovery, Gala and Worcester Pearmain are highly susceptible to fruit tree red spider mite. Fruit tree red spider mite has a simple life cycle , overwintering as eggs on …

Read more...

Life cycle (Rosy apple aphid)

Eggs, laid in bark crevices on smaller branches and spurs and at the bases of buds, hatch in early spring before bloom. The aphids feed on buds and outer rosette leaves. They increase asexually, giving birth to live young. Numbers increase rapidly in May …

Read more...

Pest status (Rosy apple aphid)

An important key pest of apple which can be difficult to control with insecticides. The severity of attack varies considerably from year to year. A similar species, the pear bedstraw aphid ( Dysaphis pyri ), is an important pest of …

Read more...

Varietal susceptibility (Rosy apple aphid)

There are considerable differences in the susceptibility of different apple varieties to rosy apple aphid, but the relative susceptibility has not been adequately characterised. Highly susceptible varieties include Bramley, Discovery, Egremont Russet, …

Read more...

Damage (Rosy apple aphid)

First signs of damage are in early spring when outer rosette leaves of infested trusses show a slight yellowish discoloration before curling. As larger colonies develop, infested leaves are severely curled downward and distorted. They sometimes turn …

Read more...

Recognition (Rosy apple aphid)

Eggs Shiny black, and found on the bark of apple trees, mainly on older wood. Visual distinction between the eggs of different aphid species is impossible. Adults Pink to dark bluish grey, with a mealy powdering of white wax. Other pests with which the …

Read more...