Tree Problems – Weed Killers

 

Tree Problems – Weed killers

Spray Injury

Some spray supplies which are non injurious to particular species of trees are very toxic to other species, or maybe the concentration utilized on one kind of tree isn't adapted to another. Some sprays ought to be used only in extremely early spring, when the tree is leafless; if they're used on new green foliage, the results might be disastrous.

During certain years, a normally non injurious spray may trigger leaf burning on trees. When the spring is extremely wet and cloudy, leaves are very sensitive and in some instances, are spotted and burned by otherwise "safe" spray mixtures.

Only one or several trees inside a big group of the exact same species might be injured by a spray. This generally results when the injured trees had been slightly off balance because of previous drought injury or some deep-seated illness in the heart or roots that couldn't be detected.

Herbicide or Weed-killer Injury

Weed-killer injury could be suspected if leaves are shaped, twisted, cupped and unusually small with light-colored veins in contrast to the darker green interveinal portions. Some weed killers are hormone products that might cause the exotic leaf formations. A weed killer, applied to one comer of a yard or several blocks to a half mile away, might float into a tree on a windy day and result in harm. At other occasions, these chemicals might be utilized in excess or too close to a tree,so the tree roots might consume some of the chemical and leaf injury might result.

Don't use a weed killer inside your spray pump and later apply fungicides or insecticides using the exact same sprayer. Injury is almost certain to result.

Don't apply weed killers or herbicide below trees, or near shrubs, or hedges.

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