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Powdery Mildew

This fungi likes warm dry climates. This fungus attacks the following. Mums, roses, lilacs, and many other woody type plants. The fungus looks like a white powdery substance on top of the foliage, no it is not illegal. It can infect buds, leaves and the stem. It rarely will kill the plant but it will make it look bad. You can spray with neem oil or lime sulfur ask for it at your nearest nursery retail store. It may take several applications before seeing good results.

Verticillium Wilt

Verticillium is an organism that spreads thru the soil and plugs the tissues of the root system. It will actually live in cooler weather but will appear during warmer temperatures. It likes vegetables such as watermelons, strawberries, potatoes, and almost all garden type plants.

Fireblight

Is a bacteria. It attacks apple, pear, quince, crabapple and other fruit trees. It also attacks pyracantha, hawthorn and toyon trees. They will damage leaves branches and they will usually turn blackish color. You should prune all dead of dying branches and twigs and dispose or burn them asap.

Leaf Spot

Also called anthracnose, scar or sometimes just black spot. It is actually caused by several types of fungi and that is why it has different names. They like several types of plants namely prunes, plums, apples and strawberries. Leaf spot causes cankers to appear on the limbs. Symptoms are black spots appearing irregular on the stems and leaves. It the problem gets out of control all the foliage will drop. To avoid this problem prune out all infected limbs, leaves and branches. You can spray with wettable sulfur or bordeaux mixture, ask for it at your retail nursery store.

More free garden information at: Guzman's Greenhouse.com

Peach Leaf Curl

This fungus only attacks peaches and nectarines. I rarely does heavy damage but will make the fruit tree week if not treated. The leaves will get think and curl up thus the name. The leaf will discolor then drop. You should spray with copper of lime-sulfur and re-apply at least 2-3 times more. Prune off dead or dying leaves and burn asap.

Rust

This type of fungus goes after ornamental trees and shrubs. Roses, Hollyhocks, photinia, and a slew of other shrubs. The color is actually a yellow and or orange on the under side of the leaves. You can spray with wettable sulfur and water during early mornings instead of evenings to control Rust.

Gary & Paul Guzman are the authors of this article: Gary is the owner of Color your world nurseries & Paul is general manager of Guzman's greenhouse and the webmaster of

http://www.guzmansgreenhouse.com

To receive more free information about gardening click here Comments should be sent to us@guzmansgreenhouse.com