Apple Tree Sprayers & Orchard Spraying
Apple growers have found a Mist Sprayer to be more efficient than any other spraying method. It is also much less expensive.
Because of the versatile nature and design of our Mist Sprayers, you can spray through foliage, cover your trees from top to bottom in just one pass!
How? A Mist Sprayer uses air to deliver the active product to the target area while you control the direction of the spray. Our 1-way Vertical Volutes spray in a pattern that covers the complete tree. It blows through to cover all surface areas so you don''t have to come back and spray the other side.
Orchards have found that they can reduce fungicide application rates by 30-35% and insecticide application rates by 10% while retaining effectiveness.
In short, the Mist Sprayer will provide you with the coverage you desire.
Apple trees are susceptible to a number of fungal and bacterial diseases and insect pests. Many commercial orchards pursue an aggressive program of chemical sprays to maintain high fruit quality, tree health, and high yields.
A wide range of pests and diseases can affect the plant; the most common diseases/pests are:
- Aphids: There are five species of aphids commonly found on apples: apple grain aphid, rosy apple aphid, apple aphid, spirea aphid and the woolly apple aphid. The aphid species can be identified by their colour, the time of year when they are present and by differences in the cornicles, which are small paired projections from the rear of aphids. Aphids feed on foliage using needle like mouth parts to suck out plant juices. When present in high numbers, certain species may reduce tree growth and vigor.
- Apple Scab: This fungus causes circular olive-green or brown blotches on the leaves, then brown scabs on the fruit and youg fruit stems. The diseased leaves will defoliate early and the fruit will become distorted, eventually the fruit skin will crack and the affected fruit will drop.
- Fire Blight: Can be a devastating disease which can develop quite rapidly and destroys individual trees or entire orchard blocks in a single season. iIs caused by the Erwinia amylovora bacterium which begin to multiply rapidly, creates a creamy bacterial ooze that attracts insects that will carry it to open flower buds where infection occurs. It is also carried by wind and rain to open blossoms. Infected tissues have a blackened or "burned" appearance, which gives it the name "Fire Blight."
- Powdery Mildew: Light grey powdery patches appear on the leaves, shoots and flowers, normally in spring. The flowers will turn a creamy yellow colour and will not develop correctly.
- Gymnosporagium Rusts
- Cedar-Apple Rust & Hawthorn Rust: These fungi causes brilliant yellow-orange or reddish spots or lesions on apple leaves and occasional lesions on the calyx end of fruit. Deformity of the fruit and green stems may also occur
- Quince Rust: Symptoms appear on apple fruit as dark-green lesions at the calyx end. These lesions cause puckering and distortion of the fruit and are brown and spongy down to the core.
Applying insecticides and miticides on apples:
- To minimize the emergence of pests that are resistant to pesticides, avoid repeated application or season-long use of pesticides with the same mode of action.
- Use a delayed dormant oil application to control European red mite and San Jose scale.
- Use broad-spectrum insecticide only against codling moth, plum curculio, and leafrollers.
- Use narrow-spectrum insecticides if problems are detected with aphids, leafhoppers, leafminers, and San Jose scale.
- Avoid using products known to be highly toxic to predatory mites or predaceous insects.
|Apple Tree Insect Pests|
European Apple Sawfly
European Red Mite
Rosy Apple Aphid
Green June Beetle
|Oriental Fruit Moth
San Jose Scale
Tufted Apple Budmoth
Tarnished Plant Bug
|Apple Tree Fungal Diseases
American brown rot
Anthracnose canker and bull''s-eye rot
Apple ring rot and canker
Armillaria root rot - shoestring root rot
Black root rot
Black rot, frogeye leafspot and canker
Blister canker -nailhead canker
Brooks fruit spot
Brown rot blossom blight and spur infection
Clitocybe root rot
European brown rot
Fruit blotch, leaf spot and twig canker
Glomerella leaf spot
Gay mold rot = dry eye rot, blossom-end rot
Leptosphaeria canker and fruit rot
Leucostoma canker and dieback
Moldy core and core rot
Monilia leaf blight
Nochaetia twig canker
Nectria twig blight -coral spot
Peniophora root canker
Phomopsis canker, fruit decay and rough bark
Phymatotrichum root rot -cotton root rot
Phytophthora crown, collar and root rot -sprinkler rot
Phytophthora fruit rot
Pink mold rot
Rosellinia root rot = Dematophora root rot
Foliar fertilization, a water soluble fertilizer that is sprayed on the foliage, may help small woody plants, especially plants that aren''t getting enough iron. Foliar feeding of trees is becoming more popular and is often used to correct any micronutrient deficiencies. Iron chlorosis is one of the most common micronutrient deficiencies, due to typically high soil pH values. Iron can be added anytime during the growing season, as it does not stimulate excessive growth but corrects a chlorotic (leaf yellowing symptom) condition. A Michigan State College study has shown plants absorb nutrients not only through the roots, but also through the foliage, the fruit, the twigs, the trunk and even the flowers. Plants can absorb nutrients 8 to 10 times more efficiently through their leaf surfaces than through their roots. When applying nutrients to the leaf, the nutrients move through the stomata downward through the plant--at the rate of about a foot an hour. When applying nutrients to the leaves in soluble forms, as much as 95 percent of what is applied may be used by the plant. If a similar amount is applied to the soil about 10 percent of it is available. Foliar feeding is effective even on dormant plants and trees.