Diseases

Fungus

Fungi is the most common type of plant disease.  Fungi cause many different symptoms such as leaf spots, wilts, curled leaves, dieback, enlargements or galls, stunted plants and dead plants.  Fungal spores are spread by wind, water, soil movement, machinery, insects and anything else they come in contact with, including people.

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Leaf Curl

Leaf curl is a plant disease characterized by curling of leaves, and caused by a fungus or virus. Leaf Curl is distinctive and easily noticeable, and the severity of the symptoms depends on how early the infection has occurred.
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Psyllid

Psyllid nymphs are found on new shoots of citrus trees. As they feed, they produce a toxin that causes the tips of the plants to die back or become contorted, preventing the leaves from expanding normally.Related imageFire Blight

Fire blight is and extremely contagious disease that mostly affects apples and pears, but has been known to be problematic to other fruits. Fire blight can be an extremely costly and tricky condition to treat,  combat, and eradicate.Image result for fire blight disease



Thrips

A common plant pest that is a serious threat to the life of your plants is called thrips. When Thrips attack your plants, most commonly ornamental shrubs, they damage the leaves causing unsightly damage and leaf curling. Leaf curl, when left unchecked , can quickly spread throughout the entire tree. This greatly diminishes the attractiveness of the tree/shrub. It detracts from the tree’s privacy hedge affect as well. 

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Powdery Mildew

Southern California coastal areas are a prime target for Powdery Mildew, which is a fungus that affects multiple plant species. It is one of the easier diseases to spot, as its symptoms are quite distinctive. Infected plants display white powdery spots on the leaves and stems. The lower leaves are the most affected, but the mildew can appear on any part of the plant above ground. Image result for powdery mildew


















Sooty Mold

The name itself is descriptive, as sooty mold is a black, powdery coating adhering to the leaves of ornamental plants such as azaleas, gardenias, camellias, crepe myrtles and laurels.
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Pine Bark Beetle

One of the most serious infestations of bark that can lead to the death of the tree is due to vascular injury caused by the Pine Bark Beetle. In order to treat and or prevent this disease, its important to look for symptoms. Signs to look for are exit holes in the bark left by adults, a reddish color type dust, and foliage that takes on a yellow color. A large majority of trees that become infested with this disease has been made fragile from the drought.Image result for pine bark beetle



Destructive Moths

The damage caused by destructive moths to the leaves of trees can be tremendous.

The California Oak Moth is primarily found in Coastal regions of our beautiful state. The moths are a tan brown color, and can be regularly seen in the afternoon which is a prime feeding time for these parasites. Oak Moths primary goal is to find mates, and lay eggs to repopulate for the future population of caterpillars. The moths themselves is not what causes the initial damage, it is the existence of the caterpillars that descend on the leaves.

The larvae feed on the leaves of oak between veins on the lower leaf surface. Although the upper leaf surface is left intact, it dries out and turns brown. Some chew completely through the leaf blade, often leaving only major leaf veins. Small pellets drop from the canopy as larvae feed. In outbreak years, individual trees or groups of trees may be almost entirely defoliated, typically by late summer or early fall. Related image


Snails & Slugs 


Snails and slugs feed on living plants and on decaying plant matter.  They usually chew irregular holds with smooth edges in leaves and flowers thus wreaking havoc on your in your landscape and gardens. Related imageSnails

Snails have a coiled shell that is large enough for the animal to retract completely into. Most snails have thousands of microscopic tooth-like structures located on a ribbon-like tongue called a radula. The radula works like a file, ripping food into small pieces. Snails eat plants or algae from surfaces with their radulae and prefer a wet environment. Image result for snail


Slugs

Slugs are very similar to snails however they typically lack a conspicuous shell. Some species of slugs have a reduced shell, some have only an internal vestige that serves mainly as a calcium repository, and others have no shell at all. There are however important differences in habitats and behaviour. A shell-less animal is much more maneuverable and compressible, so even quite large land slugs can take advantage of habitats or retreats with very little space. Slugs squeeze themselves into confined spaces such as under loose bark on trees or under stone slabs, logs or wooden boards lying on the ground. In such retreats they are in less danger from either predators or desiccation, and often those also are suitable places for laying their eggs. 

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