Common Pests and Diseases- and ways to deal with them:
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troubleshooter1 Bark shrinks in concentric rings and cracks. Red growths appear in winter Mottling and speckling of leaves occurs White powdery deposits covering the surface of leaves and young shoots Large, irregular holes appear in leaves Pale pink grubs are found in fruits in July and August. Causes red / brown spots and small ragged holes on leaves Leaves form red blisters which later turn black. Leaves fall prematurely Dark green or brown spots appear on leaves of Apples or Pear trees Leaves have a silver appearance and shoots dark black
tomatoes Large, irregular holes appear in leaves and fruit Common on Tomatoes. Fruits develop splits, usually when ripe Spreading, brown patches with white mould on the underside Dark, leathery patches on flower and fruit of tomatoes Fruits develop pale brown sunken areas Area around the base of fruit and stalk is hard and green Mottling and speckling of leaves occurs Very common on all types of plants Plants show leaf spotting and grey, fluffy mould on stems, leaves flowers or fru Form stunted or distorted growth to colour changes or mottling of leaves Common disorder where plants appear to wilt even in moist soil
tree and shrub Found on the roots and around the base of tree and shrub stems Winding tunnels in the leaves caused by a burrowing insect Spots, rings or blotches appear on the leaves of a range of plant species Look out for U-shaped notches on the leaves of plants Large, irregular holes appear in leaves Bark shrinks in concentric rings and cracks Shoot tips die and the rest of the shoot slowly dies too Colonies are visible around new buds or shoots in particular
flowers Common, easily recognisable pests Orange or brown spots or pustules on the underside of leaves and stems Frothy white masses appear on the stem of many garden plants Large, irregular holes appear in leaves Pale or mottled or flecked marks appear on leaves Leaves appear yellow and may be stunted White powdery deposits covering the surface of leaves and young shoots Mottling and speckling of leaves occurs Small, white flies, which multiply quickly and rise in clouds when disturbed Petals look ragged and unsightly Silvery flecking and streaking appears on the petals and leaves Colonies are visible around new buds or shoots in particular Causes red / brown spots and small ragged holes on leaves
map4 Leaves appear yellow and may be stunted Orange or brown spots or pustules on the underside of leaves and stems Clusters of white, fluffy insects on stems and leaves of houseplants Some or all leaves drop off the plant Mottling and speckling of leaves occurs Insects with a scaly or fluffy coating which do not move when touched White powdery deposits covering the surface of leaves and young shoots Plants show leaf spotting and grey, fluffy mould on stems, leaves flowers or fru Colonies are visible around new buds or shoots in particular Small, white flies, which multiply quickly and rise in clouds when disturbed
plants2 Shoots of a different colour arise from the rootstock Bark shrinks in concentric rings and cracks Leaves become spun together by silken threads Frothy white masses appear on the stem of many garden plants Orange or brown spots or pustules on the underside of leaves and stems Mottling and speckling of leaves occurs Pale or mottled or flecked marks appear on leaves Large, irregular holes appear in leaves Black spots with yellow fringes spread quickly over the plant Causes red / brown spots and small ragged holes on leaves White powdery deposits covering the surface of leaves and young shoots Colonies are visible around new buds or shoots in particular
veg Small, brown spots on Broad Bean leaves Look out for irregular holes in leaves and slime trails Large, irregular holes appear in leaves Colonies are visible around new buds or shoots in particular Hard, shiny, yellow / orange grubs which tunnel into underground plant parts Small, white flies, which multiply quickly and rise in clouds when disturbed U-shaped notches appear around the edges of leaves Maggots tunnel inside Peas while still in the pod Silvery flecking and streaking appears on the petals and leaves White powdery deposits covering the surface of leaves and young shoots Roots are swollen and distorted and plants grow slowly or die Brassicas develop huge blue-tinged leaves, which wilt on sunny days
Green, feathery coatings on lawns Unsightly weeds invade the lawn Patches of bleached grass take on a pinkish appearance, especially after rain
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