Cantaloupe leaves on semi-young seedling turning white...



Cantaloupe leaves on semi-young seedling turning white...

Fri Jun 27, 2008 11:31 pm

Is this a recoverable condition, or should I start to worry about the seedling. I'm close to transplanting to the garden. We've got some 90+ degree temps coming up this weekend however.

Any input on the white leaves would be appreciated?

Thanks,
-Chris :D
Topher
New Member
 
Posts: 3
Joined: Jun 9 '08

Mon Jun 30, 2008 7:21 pm

Hi topher! I found a rather long winded thing about the cantaloupes that may help. I do not have nay first hand experience but this may help a lot.

What the Problem Probable Cause Comments
Looks Like
Deformed, curled leaves. Aphids Use insecticidal soap.
Small, soft-bodied insects
on undersides of leaves.
Sticky honeydew or black,
sooty mold may be present.
Fine stippling on leaves. Spider mites Use oil or soap spray.
Yellow or brown leaves.
Leaf undersides are silver-gray
with fine webbing and yellow,
orange, or red dots.
UC Davis, Vegetable Research and Information Center Home Vegetable Gardening
Page 3
Problem Diagnosis for Cantaloupe (continued)
What the Problem Probable Cause Comments
Looks Like
Leaves turn yellow. Honeydew Whiteflies Remove infested plants as
or sooty mold present. Clouds quickly as possible. Remove
of tiny while insects fly up lower, infested leaves of
when plant is disturbed
Coarse, while stippling on Leafhoppers
upper surface of leaves.
Leaves may turn brown.
Blotches or tunnels on leaves Leafminers
Angular necrotic areas Angular leafspot Avoid wetting foliage
on leaves. (caused by bacterium with irrigation water.
that spreads in water)
Swelling, beads on roots. Nematodes Rotate crops. Use soil.
Wilted plants. Poor yields solarization techniques
Holes chewed in leaves Cucumber beetles Use pyrethrins
Scarring of runners, young (Beetles are yellow-green
fruit, and crown. Wilting. with black stripes or spots.)
Beetles are visible.
Leaves have small specks that Squash bug Trap adults beneath boards
turn yellow, then brown. Vines in spring. Turn over boards
wilt from point of attack to in a.m. and kill bugs. Pick
end of vine. off. adults, young, egg
masses
White, powdery spots on leaves Powdery mildew Disease is less severe in hot,
and stems. Spots may enlarge (Spores of powdery mildew dry weather. Use resistant
and completely cover leaf. fungus are spread by wind varieties. Dusting with sulfur
Defoliation may occur. and air currents.) can be effective. Remove
Yields reduced. old plant debris.
Yellow spots on upper leaf Downy mildew Use resistant varieties.
surfaces. Grayish, fuzzy (caused by fungus disease) Remove old plant debris.
growth on undersides of spots.

What the Problem Probable Cause Comments
Looks Like
Stunted plants, small leaves Mosaic virus Remove infected plants as
with irregularly shaped light (transmitted by aphids) soon as detected. Control
and dark spots (mottled). aphids. Control weeds.
Yields reduced Aluminum foil is effective as
soil mulch to reduce infection
Deformed fruit is edible.
Poor fruit set Insufficient pollination Hand-pollinate using artists
Lack of bee pollinators paintbrush if you have too
few bee pollinators. Bee
activity may be low due to
cool weather or insecticides.
Misshapen or bitter fruit Inadequate pollination See comments above.
Dry soil or high temperatures Supply water.
Poor soil fertility Get soil tested.
Poor flavor Poor soil fertility Get soil tested and adjust
Lack of sweetness Low potassium, magnesium fertilizer.
or boron.
Plants wilt and die, beginning Verticillium wilt Rotate. Avoid soil previously
with older crown leaves. (caused by Verticillium planted in potatoes, peppers,
Light brown streaks occur inside fungus) eggplant, tomatoes, and
lower stem, runners and root. cucurbits.
Visible when split lengthwise.
Plants wilt suddenly. Sudden wilt (Caused by Avoid water stress after fruit
Roots rot. Pythium fungus) set. Avoid wetting soil to the
crown. Improve drainage.
Plant on raised beds.
Runners turn yellow and will. Fusarium wilt Use resistant varieties.
Entire plant collapses. One- (caused by Fusarium fungus) Rotate out of cantaloupe
sided brown lesion may form on for 5 years.
affected runner for 1 - 2 ft.
UC Davis, Vegetable Research and Information Center Home Vegetable Gardening
Page 5
Problem Diagnosis for Cantaloupe (continued)
What the Problem Probable Cause Comments
Looks Like
Water-soaked, sunken, brown Belly rot Rotate crops.
or black spot on fruit not improve drainage. Stake or
restricted to blossom end cage to keep fruit off ground.
Excessive vegetative growth Planting too close together Increase plant spacing.

Again sorry for such a long post but it was all I could find. If you need the website it is http://vric.ucdavis.edu/veginfo/commodi ... nthone.pdf
Begin again before you end and start the process over again.
pete28
Senior Member
 
Posts: 120
Joined: Apr 18 '08
Location: White Springs Florida

Fri Feb 19, 2010 1:37 am

pete28 wrote:Lack of sweetness Low potassium, magnesium fertilizer.
or boron.

Hey pete28,

How can potassium be "supplemented" into the garden? Can you use foods that have lots of potassium as natural fertilizers?
Low potassium can lead to particular symptoms.
yup
New Member
 
Posts: 1
Joined: Feb 19 '10




    

  •   Similar Topics
    Replies
    Views
    Last post


Return to FRUIT FORUM