The redness of peach leaves is mainly related to the inheritance of varieties. The old leaves of common early-maturing peach varieties turn red in summer; After harvesting of individual late-maturing varieties, the water imbalance of leaves quickly aged, and the temperature was low at night in late autumn, which accelerated the decomposition of chlorophyll in leaves and made anthocyanins appear and turn red.
In addition, pink leaf disease can also make leaves red
Control aphids, planthoppers, leafhoppers, red spiders, scale insects, etc., which are easily transmitted by sucking mouthparts
Control aphids, leafhoppers and planthoppers, and use imidacloprid, acetamiprid, high chlorine, etc.
Tetranychus urticae, pyridaben and abamectin can be used to control red spider. To control scale insects, high chlorine, ammonia and 48% chlorpyrifos can be sprayed evenly.
At the same time, spray anti-virus drugs: trichloroisocyanuric acid, moroxydine hydrochloride, hydroxamic acid, bacterial toxin, etc.
I wish you a good harvest as soon as possible! ?
that should be the problem of varieties. Early-maturing varieties
usually turn red and fall off in the late growth stage.