Q.
I have one pomegranate tree in bad shape. The leaves are turning yellow and
then brown, underneath the veins are pink. This is one tree out of my 50 that
looks like this each other tree look great with a lot of new growth. Any ideas
what could be happening with this one tree?
A.
Yellowing of the leaves could be caused by several things including flooding
the soil too often, poor drainage and planting too deeply. However, if these
trees have been growing for several years, you have done nothing differently and
suddenly the leaves turn yellow, it could be damage from weed killers used in
the area.
Yellowing of the leaves could be caused by several things including flooding
the soil too often, poor drainage and planting too deeply. However, if these
trees have been growing for several years, you have done nothing differently and
suddenly the leaves turn yellow, it could be damage from weed killers used in
the area.
Remember, apply weed killers only when
there is no wind and temperatures are cool. Best times are usually spring and
fall. Some weed killers can vaporize into the air when sprayed during the heat.
Slight wind movement causes these vapors to drift onto the leaves of valuable plants
nearby and damage them.
there is no wind and temperatures are cool. Best times are usually spring and
fall. Some weed killers can vaporize into the air when sprayed during the heat.
Slight wind movement causes these vapors to drift onto the leaves of valuable plants
nearby and damage them.
Never spray weed killers when the
wind is strong enough to move plant leaves. Use leaf movement as an indicator
whether to spray or not. Early morning hours are usually best.
wind is strong enough to move plant leaves. Use leaf movement as an indicator
whether to spray or not. Early morning hours are usually best.
Some worst offenders in this
category are the lawn dandelion and similar weed killers. These types of weed
killers move easily with air movements and cause leaf distortion, leaf
yellowing, leaf death and even plant death.
category are the lawn dandelion and similar weed killers. These types of weed
killers move easily with air movements and cause leaf distortion, leaf
yellowing, leaf death and even plant death.
If the plant is actively growing
when weed killers accidentally drift onto the leaves, then wash the leaves with
water as soon as possible. Diluting weed killers with water while the leaves are
still wet helps prevent damage.
when weed killers accidentally drift onto the leaves, then wash the leaves with
water as soon as possible. Diluting weed killers with water while the leaves are
still wet helps prevent damage.
All you can do at this point is wait
and see what happens. Fertilize it normally and water it. But remove the grass
at least 2 to 3 feet from the trees and fertilize it with nitrogen fertilizer.
Another possibility could be salinity…salts…but you should see some leaf tip browning.
and see what happens. Fertilize it normally and water it. But remove the grass
at least 2 to 3 feet from the trees and fertilize it with nitrogen fertilizer.
Another possibility could be salinity…salts…but you should see some leaf tip browning.