Aspen trees ( Populus spp . ) spring up as deciduous hardwood trees throughout North America . Aspen trees can pass heights of 60 foot , but usually do n’t survive for more than 25 years in an urban or home landscape . Controlling pestis and treat fungal diseases will take up the majority of your metre when caring for aspen trees .
Step 1
body of water aspen trees deeply to thoroughly moisten the soil in the full root zone once every one or two week to supplement rainfall . Allow the top 2 inch of soil around the tree to become slimly wry before water again .
Step 2
Feed aspen tree diagram a balanced , slow - dismission chondritic Sir Herbert Beerbohm Tree plant food once each year in the springiness . propagate the plant food granules on the basis around the tree , covering the entire canopy area and come after the dosage instructions on the label .
Step 3
Prune aspen trees in the wintertime to thin out the branch , as well as to remove any dead , diseased or damaged limb . Never remove more than one - third of the tree in a single class .
Step 4
deal aspen trees for poplar borer infestations by injecting an insecticide into the bored yap in the torso .
Step 5
Watch for tent caterpillar in aspen tree diagram , which make great webs around the leaves , stems and branches when they pupate . absent the webs and spray your aspen Sir Herbert Beerbohm Tree with dormant horticultural rock oil in late winter or other outpouring .
Step 6
deal aspen tree diagram for the fungal disease leaf dapple if you see previous folio drop and black blotches on the leave . Rake away and destruct all the fallen foliage and spray the tree with a fungicide in other saltation .
Step 7
Control aphid infestation in aspen trees by spraying them thoroughly with a gamey - pressing hosiery and insecticidal soap .
Tip
If you see rough areas developing on the aspen tree diagram ’s barque along with tiny ignominious demarcation , you belike have a scale infestation . scan away and destroy any fall leaves and spray your aspen Sir Herbert Beerbohm Tree with torpid horticultural oil in the winter . Spray the aspen tree with an approved insecticide in June .
Warning
view out for cytospora canker infecting aspen Sir Herbert Beerbohm Tree . Look for orange tree dots and callused canker increase on the bark to spot this fungal disease . Prune away and chuck out all infect offshoot . Always disinfect your pruning tools when geld off morbid wood to preclude spread the disease to other Tree . Dip your pruning dick into a mixture of three part denatured inebriant and one part water for about 30 second .
