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Fruit surface colour change at site of
San Jose scale feeding |
Heavy
infestations of San Jose scale on the bark and stems of apple
trees can cause dieback and
serious loss of production. The main economic damage from scale
insects is fruit infection near the calyx
or stem end, accompanied by fruit discolouration. Early
season fruit feeding can cause some fruit
distortion or pitting. Stem
infestation by tiny scale insects may appear to be a change
in stem texture and their feeding can also cause discolouration.
To
see the insect and ......
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