|What have you found that does the best job of getting rid of white flies? Also, what causes end blossom rot?|
|If you're dealing with an outdoor white fly problem, you might want to try releasing lacewings or minute pirate bugs, both available through the above suppliers.|
Other control methods include yellow sticky traps - basically cardboard painted bright yellow and coated with mineral oil or petroleum jelly, and suspended near the tops of plants. Insecticidal soaps work well against white flies, too. Just be sure to spray both top and undersides of leaves. Insecticidal soaps can cause burning of leaves if applied during hot weather, so use caution.
Good luck in getting rid of those pesky pests!
Blossom-end rot of tomatoes is a physiological disorder caused by a lack of sufficient calcium in the blossom end of the fruit. This disorder results in the decay of tomato fruits on their blossom end. Dry brown or tan areas the size of a dime, that grow to the size of a half dollar, characterize this disorder. This disorder is usually most severe following extremes in soil moisture (either too dry or too wet).
To reduce blossom-end rot in tomato, implement the following steps:
Fertilize properly -- Applying too much fertilizer at one time can result in blossom-end rot.
Mulch plants -- Use straw, pine straw, decomposed sawdust, ground decomposed corn cobs, plastic, or newspapers. Mulches conserve moisture and reduce blossom-end rot.
Irrigate when necessary -- Tomato plants require about 1.5 inches of water per week during fruiting. This amount of water should be supplied by rain or irrigation. Extreme fluctuations in soil moisture result in a greater incidence of blossom-end rot, so keep the soil consistently moist.
Best wishes with your tomato plants.