. The more important fruit tree diseases of Ontario [microform]. Fruit; Pulvérisation et poudrage en agriculture; Spraying and dusting in agriculture; Fruits; Exploitations agricoles. «' It Symptoms. A whitish mould sometimes with a distinct pinkii;. tinge de- velops around or upon the scab spots. This is followed by a brown rotting around the spots, which markedly disfigures the '; and renders it unpalatable. Prevention. Spray thoroughly to prevent Apple Scab. Pink Rot never causes serious injury except to scabby apples. In packing, discard any fruits showing signs of white mould. Store the f
. The more important fruit tree diseases of Ontario [microform]. Fruit; Pulvérisation et poudrage en agriculture; Spraying and dusting in agriculture; Fruits; Exploitations agricoles. «' It Symptoms. A whitish mould sometimes with a distinct pinkii;. tinge de- velops around or upon the scab spots. This is followed by a brown rotting around the spots, which markedly disfigures the '; and renders it unpalatable. Prevention. Spray thoroughly to prevent Apple Scab. Pink Rot never causes serious injury except to scabby apples. In packing, discard any fruits showing signs of white mould. Store the fruit in a cool dry place as soon after picking a« can be done. If possible pick and pack when the weather is cool and dry. Peab Blight {Bacillus amylovorus, BurriU). This destructive disease is usually known by the above name, but fruit growers speak of it also as BUght, Fire Blight, Twig Blight, Bloesom Blight, and, when it infests the trunk, as Body Blight. It attacks not only pears, but also apples, crab apples, quince, mountain aah, hawthorn and juneberry. The last three are rarely much affected, but pesn,. Young pear orchard in early spring, showing blighted branches. The pre»- enca of the leaves indicates where the disease is. (Original.) apples, crabs and quince suffer severely in seasons favourable for the development of the organism. So destructive is the Blight to pears that many good orchards have been almost totally destroyed by it: in fact so great has been the loss that in many districts fruit growers >• ^e given up pear growing in the belief that they cannot successfully cope with le disease. Apples do not suflTer so severely as pears, yet some varieties, even c. large, bearing trees, are much injured, and young rapidly growing trees of very susceptible varieties are not infrequently killed All varieties of quince are much damaged by the killing of branches and twigs, though trees themselves are not often killed. The disease ib found in nurseries as well
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