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Garden Plant diseases symptoms and remedies.

 

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  Page 19
Garden Plant Symptons - Shoots eaten or with pests visible.
 
Aphids
(Shoots eaten or with pest visible)
Plants affected:Many different plants, but especially roses and broad beans. 
Symptoms:
Colonies of aphids develop on young shoots.
Aphids. Picture of infected leaf
Treatment:
 Spray thoroughly with systemic insecticide.
 
Scale insects
(Shoots eaten or with pest visible)
Plants affected:
Many different plants, both under glass and outdoors, especially beeches, ceanothus, cotoneaster and horse chestnuts.
Symptoms:
Colonies of brown, yellow or white scales on older shoots.
Scale insects- Image of affected plant.
Treatment:
Spray thoroughly with systemic insecticide.
 
Elm bark beetles
(Shoots eaten or with pest visible)
Plants affected: Elms fruit trees and pines.
Symptoms:  Intricate  galleries eaten out under the bark.
Elm Bark Beetles Image of infected tree.
Treatment: Burn affected dead wood during winter and spray susceptible trees with BHC in April if possible.
 
Rabbits/hares/voles
(Shoots eaten or with pest visible)
Plants affected: Young tees.
Symptoms:  Bark stripped from woody shoots at a little above soil level.
Rabbits-hare-vole damaged tree
Treatment:  Protect the shoots of young trees with tree protectors, or with small-mesh wire netting.
 
Leopard moths
(Shoots eaten or with pest visible)
Plants affected: Apples and pears, both fruiting and ornamental, ashes, birches, cherries, cotoneasters, hawthorns,lilacs, maples, oaks, rhododendrons, sorbus and willows.
Symptoms:  Branches tunnelled by caterpillars, causing wilting of leaves beyond he tunnel.
Plant disease symptons - Leopard moths
Treatment:  Kill the caterpillars by introducing BHC or paradichlorbenzene into the tunnels.
 
Cutworms
(Shoots eaten or with pest visible)
Plants affected:Lettuces, other vegetables and young ornamental annuals. 
Symptoms:
Shoots eaten through ar soil level; fat caterpillars in soil.
Cutworms. Picture of infected plant
Treatment:
 Control weeds, which encourage cutworms and protect suscepticle plants bby working a little BHC dust or bromophos into the soil. Seed dressings also give some protection in the early stages.
 
Sclerotinia rot
(Shoots eaten or with pest visible)
Plants affected:Many types but in particular dahlias.
Symptoms:
Stems, affected by white,fluffy fungal growth in which there are large black resting bodies, decay rapidly and collapse.
Sclerotinia rot. Picture of infected plant
Treatment:
 Burn all  rotting material before the fruiting bodies have time to fall into the soil.
 
 
 
 
Moths on garden plants
 
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