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Pests and Diseases of Plants

Apple-leaf Aphis
Bean Weevil
Blister Mite On Walnuts
Borers In Olive Twigs
Cause Of Mottle Leaf
Control Of Grasshoppers
Control Of Pear Slug
Control Of Red Spider
Control Of Squash Bugs
Cutworms And Young Trees
Depluming Mites
Finding Thrips
Formula For Lime-sulphur
Fumigating For Black Scale
Gopher Poison

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Cause Of Mottle Leaf

What is the cause and cure of mottle leaf of citrus trees?

There are apparently a number of causes of this trouble, all more or
less obscure and hard to overcome. It is generally thought that it is
due to poor nutrition, whatever the reason for poor nutrition might be.
The presence of a nematode or eel worm on the roots has found to be a
cause of mottle leaf in many cases. Poor drainage, too sandy soil and a
number of other things frequently cause it. Whatever the cause, no one
good method of cure has been found.

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