Tuesday, April 26, 2011

FRUIT TREE DISEASES

Apple Scab
The #1 disease of apple anywhere.
Symptoms:



  • they are rough fruit







  • uncommon fruit drop and leaf infection







  • accompanied by early defoliation.







  • the following year, you'll find decreased fruit bud growing and general reduction of the strength of the tree.






  • The fungus that brings on apple scab overwinters in leaf droppings. Early spring winds bring spores into the tree canopy, the consequent is lesions on leaves. Warm rainy climate leads to scab growth. Brand new infections are made through the summer as rains wash the fungus onto other leaves and fruit.
    Suggestions:
    The fungus that brings on apple scab overwinters in leaf droppings. Early spring winds bring spores into the tree canopy, the consequent is lesions on leaves. Warm rainy climate leads to scab growth. Brand new infections are made through the summer as rains wash the fungus onto other leaves and fruit.
    Suggestions:
    The fungus that brings on apple scab overwinters in leaf droppings. Early spring winds bring spores into the tree canopy, the consequent is lesions on leaves. Warm rainy climate leads to scab growth. Brand new infections are made through the summer as rains wash the fungus onto other leaves and fruit.
    Suggestions:



  • plant resistant varieties.







  • gather and take away fallen leaves.






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    Fire Blight

    It can induce grave harm to apple and pear trees.
    Symptoms:



  • fire blight commonly assaults blossoms, but infection and dying of new shoots are usual.







  • the downward looped twig tip is a feature of fire blight.
    Suggestion:







  • chop off infected twigs and branches 12 inches beneath the dead area.







  • clean the pruning tool between cuts by dunking in 10% solution of liquid bleach to stave off dispersing the disease.







  • Cedar-Apple Rust
    Symptoms:



  • bright orange blemishes on leaves and fruit.







  • usually lessen the strength of tree.
    The fungus that cause cedar-apple rust finish part of their life cycle on red cedar trees that in spring it brings about large, bright orange, gummy lesions at the ends of branches.
    Suggestion:







  • get rid of nearby Eastern red cedars.






  • Pear ScabPear scab happens in any place pears are grown. Also known as black spot on account of the dark spots it makes on leaves and fruits. Most tainted pears can still be consumed if the scabby area is taken out.
    Symptoms:



  • it first shows up on the bottom and then after on the side of the fruit.







  • infected fruit frequently become distorted.







  • scab spores arise in the winter in infected leaves that are on the ground.







  • invasion of the body starts at the green-tip phase of flower bud development.







  • infection is greater when blossoms are exposed, but goes forward for about 6 to 9 weeks.

    Suggestion:







  • get rid of leaf debris and infected fruit in the autumn.






  • PEACHES
    Bacterial Spot
    Bacterial Spot is one of the most damaging disease in all regions east of the Rockies.
    It is first sighted about 3 to 5 weeks after petals fall as small, water-drenched, brown lesions. First evidences on fruit can be misidentified for insect damage. During times of high humidity, gum may ooze out from these wounds.









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