Home Is Where Your Trees Are

Your Own Fruits And Nuts. Part 3

Spraying fruit trees is the most arduous, exacting part of their care. The list of insects, fungi, and bacteria that beset them is interminable. In some years, commercial growers have to spray fifteen or twenty times to save their crops. Home owners can "get by" with an all-purpose fruit spray from the hardware store, but cannot expect presentable yields without putting on, at the right times, a minimum of eight applications for pomes and nine for some stone fruits, using ingredients designed for definite purposes. Fortunately, the chief damage to different fruits is wrought by the same or similar pests, and at about the same times. Thus the moments and types of mandatory sprays can be condensed for thorough-working amateurs, in tabulations as follows:

Apples, Pears
TimesMaterialsTargets
Dormant (buds not yet green)Dinitro cresolAphids
Delayed Dormant (budsgreen)Miscible oilScales, mites, red bugs
Delayed Dormant plus one weekCaptanScab
Petal-FallLead arsenate plus captanCodling moth, circulio, leaf roller, scab
Petal-Fall plus one week (first cover spray)Lead arsenate plus captanCodling moth, circulio, leaf roller, scab, caterpillars
Seventeen, 31, and 41 days after Petal-FallLead arsenate plus captanCodling moth, circulio, leaf roller, scab, caterpillars, sooty blotch, fruit spot
Peaches, Nectarines
Dormant Ferbam Leaf curl (before buds swell)FerbamLeaf curl
Pink-budSulfurBrown rot
BlossomSulfurBrown rot
Fruit-husk splitSulfur plus malathionBrown rot, circulio
Ten days after Fruithusk split (first cover spray)Sulfur plus malathionBrown rot, circulio, scab
Fifteen days later (second cover spray)SulfurBrown rot, scab
Ten days later (third cover spray)SulfurBrown rot, scab
A week or so later, or just after a heavy rain (two final cover sprays)Sulfur plus DDTBrown rot, scab, Japanese beetle, Oriental fruit moth
Chebrtes And Plums (also Nut Trees)
Dormant (before buds swell)FerbamBlack knot
Fruit-husk splitFerbam or lead arsenate and captanCirculio, brown rot, leaf spot
Ten days after Fruithusk splitFerbam or lead arse husk splitCirculio, brown rot, leaf spot
When fruit colorsFerbam or captanBrown rot, leaf spot
Quickly after harvestFerbam or captanLeaf spot
Harvest plus 18 daysFerbam or captanLeaf spot