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Pests & Diseases
Home page of the pest, disease and weed department.
Every week something is attacking your plants. Check them out and be prepared to deal with the situation.
Identify the weeds giving you trouble and learn how to deal with them.
Simple search facility to help track down whatever is bugging you.
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Name search.
Use the search box on the left if you know the name of the pest you are looking for. The first result will load into the panel below and any other matches are listed in the right-hand panel. Only common names loaded at present.
Symptom search.
Result will be displayed below. Please scroll down to view.
If you have a sick plant with no obvious cause present, use the search box on the right entering one or two words describing the problem. Simple phrases like 'leaves eaten' or single keywords like 'yellow' work best. As with the name search, matches are listed in the right column and displayed in the panel below.
Search Results.
1 results found.
Blackspot
- Pest type - Fungus
- Infects - Foliage,
- Host plants- Rose, Photinia,
- Symptoms- Black spots on leaves:
Black spot is a fungus disease that primarily infects rose bushes, although several other plants can be infected. As its name suggests, leaves of infected plants develop numerous black spots on the leaves. This causes the foliage to yellow and die prematurely, and entire stems may die back until eventually the plant itself may die.
Cures are difficult as the spores of the fungi are spread over the soil ready to infect the plants again the following season.
Gather up and dispose of all dead or infected leaves and spray the bushes with fungicide early next spring as a preventitive measure.