Leaf burn on Majestic Beauty from the reader. |
A. Whenever
you see burning or scorching on the edges of leaves or on the leaf tip it is a sign
that the plant is not getting enough water or there are toxic or excessive
salts in the soil. However, knowing the number of emitters and how long they deliver water (20 minutes) does not tell me how much water is being applied. Drip emitters are variable
in their output depending on the type of emitter. All delivered amounts for drip irrigation are in gallons
per hour.
The most common drip emitters cannot deliver more than 5 gallons per hour. So if there were two, five gallon per hour emitters present, the most water that plant would get in 20 minutes is about three gallons. I don't know the size of this plant but that is not much water in one application to a tree.
Drip emitter at the end of 1/4 inch tubing releasing water at the base of a tree |
Other reasons the
plant may not be getting enough water
is that the water is applied incorrectly, roots are damaged so the plant can’t take up enough water,
the plant trunk is damaged so not enough
water moves up the trunk or damaged stems.
If amendments heavy in salts were used at planting time these salts can compete for water with the plant causing leaves to scorch or the types of salts present were or are toxic.
If amendments heavy in salts were used at planting time these salts can compete for water with the plant causing leaves to scorch or the types of salts present were or are toxic.
This time of year (March) watering twice a week is not too often provided the soil is draining adequately and not staying wet between irrigations.
I would visually inspect the tree for damage to the trunk and limbs. Move the drip emitters away from the trunk about a foot to 18 inches and add an extra emitter.
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