Life cycle of Colorado Potato Beetle (Leptinotarsa-decemlineata)
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Here is life cycle of colorado potato beetle (Leptinotarsa-decemlineata) picture with brave explanation.
Egg Stage. The insect overwinters in the adult stage a few inches beneath the soil surface. In the spring the one-half inch beetle emerges from the soil and searches for a suitable host. Once a suitable host has been located, the beetles feed, mate and lay their eggs on these plants. The yellowish-orange eggs (Figure No 1) are deposited on the undersides of leaves of host plants and nearby weeds. Each egg is about 1.8 mm long. Over a 4 – 5 week period, each female beetle lays eggs in batches of 20 – 35. A total of 400 – 600 eggs may be deposited by one female.
Larva Stage. Red at first, this soft grub has a black head and black legs. As it matures, the larva turns yellowish-red or orange and develops two rows of black spots along each side of the body. It reaches a length of about 10 mm. It feed for 2 – 3 weeks before crawling down the plant and onto the soil; they then construct a small chamber in the soil and pupate. (Figure No 2)
Pupa Stage. Generally resembling the adult in shape, the pupa is approximately 13 mm long. The insect spends 5 – 10 days in the pupal stage. (Figure No 3)
Adult Stage. This oval, convex beetle is yellowish-brown and about 9 to 14 mm long. It has five longitudinal black stripes on each wing cover and a variable number of black spots on the pronotum (area just behind the head). (Figure No 4)
The Colorado potato beetle (Leptinotarsa-decemlineata), a yellow insect with ten black stripes down its back. This insect is among to coleoptera order. This insect was first discovered in the Rocky Mountains feeding on a common weed called buffalo bur (Solanum rostratum). However, as pioneers settled the area and started planting new crops, especially potatoes, the insect migrated to this new and much more available food source.
Tags: colorado potato beetle, leptinotarsa-decemlineata, life cycle, picture of life cycle colorado potato beetle
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