weather actually inhibits the development of this disease
because wetness is necessary for infection to occur. As the
season progresses, infected leaves become covered with a
grayish-white powder. These are the spores of the causal fungus.
Infected leaves shrivel and drop prematurely. The powdery spores
are blown back onto the bark and twigs where they spend the
Weakens Peach Trees
curl does not kill a tree outright, it does weaken a tree to
lose its leaves so early in the summer. That means that the tree
did not have much of a chance to produce carbohydrates through
photosynthesis. Those stored carbohydrates are important to help
a tree withstand stress from drought, insect or disease problems
as well as providing the energy for it to push out new growth
next spring. Trees that are defoliated in early summer often try
to flush out a second set of leaves, which further depletes
their store of carbohydrates. Trees that are defoliated by peach
leaf curl in successive years can die.
Peach Leaf Curl Prevention
To prevent leaf
curl from infecting your tree next spring, wait until the leaves
drop in the fall and the tree is dormant, and then apply a lime
Make another application next spring just as the
buds begin to swell, but before they open. Spray the trunk,
branches and twigs thoroughly, to the point of runoff. If the
tree responds well next year, you need only make a single
application in the fall, once the leaves drop and the tree is
practices that maintain the tree's vigor are also important.
• Thin the fruit
when they are one-half inch in diameter so that you leave one
fruit every six to eight inches. This results in larger fruit
for you and less demand for nutrients on the tree.
• Keep the tree
watered if we get into hot, dry weather. Use a soaker hose or
remove the nozzle from your hose and let the water trickle
slowly around the base of the tree, moving the hose every 20 -
30 minutes until you have watered thoroughly around the
circumference of the tree. This should be done weekly until
temperatures cool off and regular rain resumes.
• Apply one and
one-half pounds of 10-10-10, broadcast around the base of the
tree out past the ends of the branches (the dripline). Be sure
to fertilize before July 15 to avoid pushing new growth that may
not harden off in time for winter. Please remember that more is
not better when it comes to fertilizer. As the tree grows, you
should increase the amount of fertilizer applied annually by
one-half pound until you reach the maximum of five pounds of
10-10-10 per tree.
Almond & Pecan trees
Fruit tree planting