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Posts Tagged ‘Flora and Fauna’

MaWhitefringed Beetle

Monday, May 17th, 2010

Whitefringed Beetle

Common names: Whitefringed Beetle

Scientific name: Graphognathus leucoloma

Region: This Beetle is common to the southeastern United States.

Life cycle: This beetle overwinters as a larva or an egg in the soil and produces one generation each year.

Physical Description: This brown-gray beetle is about 1/2 inch long, has white hairs on its back, a short head/snout, and cannot fly.  The eggs are coated with a very sticky substance and are laid in large groups and the base of plants.  The yellowish white larva has no legs and is about 1/2 inch in length.

Feeding characteristics: The whitefringed grub lives in the soil and feeds on the roots of beans and a variety of other vegetables and ornamentals.  The larva eats the tender outer root tissues and may sever the main root, causing the plant to turn yellow and limp, eventually killing them.  It has acquired a taste for about 400 plants.  The adult is less dangerous to the garden and are particularly fond of legumes.

Controls: Large-scale growers should not plant more than a quarter of there annual crop land in legumes, or plant the same land with legumes more than once in three to four years.  On a smaller scale, the home gardener can control this pest more efficiently.  Make sure you don’t plant legumes together.  Clean cultivation is the only effective organic control.  Build the soil fertility so that the plant may become strong enough to fight off the beetles’ attack.

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Natural pest control

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Striped Cucumber Beetle

Saturday, May 8th, 2010

Striped Cucumber Beetle

Common names: Striped Cucumber Beetle

Scientific name: Acalymma vittata

Region: This beetle can be found in the eastern portion of North America.

Life cycle: The Adult beetle overwinters in plant debris.  Only one generation is produced by beetles in the North, while in the south two to four generations are common.

Physical Description: The adults are distinguished by the pale yellow to orange wing covers with three longitudinal stripes and black head.  It grows to a 1/4 inch length.

Feeding characteristics: The adults chew on leaves and flowers and carry Bacterial Wilt and cucumber mosaic, while the larvae feed on stems and roots.

Controls: Nature provides a lot of control in the form of natural predators, such as, Soldier Beetles, Tachinid Flies, Braconid Wasps and parasitical nematodes.  However, you can also try covering your plants with cheesecloth, or infestations that are more serious, dust or spray with insecticides.

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Spotted Grapevine Beetle

Friday, May 7th, 2010

Spotted Grapevine Beetle

Common names: Spotted Grapevine Beetle, Spotted pelidnota, Spotted June beetle

Scientific name: Pelidnota punctata

Region: This Caterpillar is found throughout North America.

Life cycle: This insect produces one generation each year and hibernates as a mature larva.  Its only in the adult stage for two months.

Physical Description: This 1” long, light brown, shiny beetle has 6 black spots on the wings.  The larva is a large white grubs that prefer well-rotted wood matter.

Feeding characteristics: The adults feed on grape leaves and, if numerous, may cautilize damage.

Controls: If the number of infested plants is small, hand pick the insects.

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