Canker in plum trees comes from an invasive fungus , which can eventually corrode away at and bolt down your plum tree trees if left untreated . Cankers can develop on the large branches or even the automobile trunk and enlarge to the point where they ’ll choke off and kill the part of the Sir Herbert Beerbohm Tree above them . Prevention is just as important as treatment when one of your plum tree tree has canker . Preventing the spreading of canker is crucial in not only save the septic tree diagram , but also preserve the health of surrounding plum and other yield tree diagram .
Step 1
Diagnose pestilence in your plum Sir Herbert Beerbohm Tree by visit them for holes in the out barque and rusting - colored falling out on the Sir Herbert Beerbohm Tree . The first house of cankers is ooze light - amber gum near the contagion point beginning in April or early May . Dieback will also occur on infected twigs during the spring and former summer , with gum at the twig ’s groundwork .
Step 2
Remove infect branches completely from your plum tree , especially if the branch are dead from the canker . combust the infected wood or throw it in the rubbish .
Step 3
Cut out little pestilence in the summertime . bring down away the bark and get rid of the infected area using a sharp knife . Cut at least four column inch below the canker , and try out to keep the margins as smooth as possible .
Step 4
Disinfect your pruning shear , tongue and other prick used on the septic plum tree trees after each use . seat tools in a solution of one part bleaching agent and four part water . pass over the tools down and dry them now to annul erosion .
Step 5
Apply a wound dress to the excised pestilence wound . Then , shoot a Bordeaux admixture into the plum trees to treat the cankers . A Bordeaux motley is a compounding of copper sulphate and hydrous lime that is effective at killing fungi .
Step 6
forestall further infection , do your summertime dress after harvest so that the weather is dry . Also , hold over your abeyant pruning until January or February .
Tip
To help avoid re - contagion or unfold the contagion , slay the grass and weeds from around the bottom of the plum trees . This will aid to keep the trunk ironical and increase aura circulation around the plum tree Sir Herbert Beerbohm Tree .
Warning
Do n’t remove canker sore during wet , rainy weather . You ’ll risk rain and water splash - back that could infect other part of the tree or skirt tree . Likewise , do n’t apply a sprinkler to water infect trees . Take particular upkeep when using a Bordeaux mixture , because the copper in the mixture can harm fish , stock and fishing worm in your soil . enquire other antimycotic if you keep farm animal near your plum tree or if your tree are located near a water source .
