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Allowing some leaves to remain on your lawn can benefit both the yard and various insect populations. "If you have just a few leaves, such as 20 percent of the lawn covered, you can just ignore them.
These necrotic lesions, localised in area and shape, consist of dead and collapsed cells of the host leaves. [1] One distinct feature of fungal infections is that there may be visible spores in the centre of leaf spots. [7] Fungal leaf spots often have a brown, black, tan or reddish centre with a darker margin and vary in size. [11]
Armadillos burrow in forest areas, but their damage usually consists of dozens of shallow holes a few inches deep in your yard or garden. You also may see three-toed tracks with claw marks.
Shot hole disease is a major concern of the stone fruit industry. It is estimated that 80% of the California almond crop may be infested with shot hole disease, resulting in a potential yield loss of 50-75%. [3] In the 1930s, it was found that applications of Bordeaux mixture reduces shot hole disease on peaches from 80% to 9%.
Leaf flush in an Actinodaphne tree showing young whitish leaves turning pale green against the darker green mature leaves. A Canarium strictum tree in red leaf flush.. Leaf flushing or leaf out is the production of a flush of new leaves typically produced simultaneously on all branches of a bare plant or tree.
The U.S. Environmental Protection Agency said leaves and other yard debris make up more than 13% of the nation’s solid waste, which comes out to 33 million tons a year.
Black spot (class Leotiomycetes: family Helotiales) Diplocarpon rosae syn. Marssonina rosae – Marssonina rosae causes black spots on leaves. [4] The spots, which may be as much as 12 mm across, are generally circular and have an irregular edge often with a yellow halo. Leaves frequently turn yellow and fall early.
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