Aphids

Description

The most common of all pests and almost every plant from the smallest shrub to the tallest oak tree can be infested at one time or another.

Symptoms

The little bugs feed on the sap of the plant weakening it and reducing its rate of growth. They can also transmit a virus to the plant. Plant leaves can become curled or distorted.

The Aphid colonies gather on the undersides of the leaves and as they suck the sap, so they excrete a sugary honeydew onto the leaves below – developing a shiny glaze. Particularly in damp conditions, a sooty mould will grow on the honeydew glaze which is not only unsightly but will gradually deprive the leaf of light and eventually the plant will die.

Aphids also shed their skins as they increase in size. Cast off skins also gather on the leaf surfaces below forming a whitish dust.

Treatment and control

Spray with a natural-based insecticide

Pyrethrin (an natural plant extract) based insecticides will control Aphids and other plant pests. An example is BugClear Gun! for Fruit & Veg. For best results spray thoroughly as Pyrethrins kill on contact.

Spray with a general insecticide

Most broad spectrum insecticides will control Aphids. Examples are BugClear Ultra Gun! for Flowering Plants for ornamental plants or BugClear Gun! for Fruit & Veg for edible plants. This systemic insecticide kills very quickly on contact and protects the plant for up to 3 weeks.

Always read the label. Use pesticides safely.