Mines can be detected in the leaves and leaf stems, a distortion in the growing shoot with leaves spun tightly together are evidence of a larva within. Scrobipalpa ocellatella Boyd. Common The biology of the sugar-beet mining moth Scrobipalpa ocellatella (Boyd) (Lepidoptera: Gelechiidae). Synonyms. Euscrobipalpa ocellalella Boyd, Gnorimoschema ocellatellum Boyd, Phthorimaea ocellatella Boyd. Systematic position. Class Insecta, order.
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Pheromone traps have been used for monitoring the flight pattern of the pest and for timing of control measures.
High relative humidity, achieved with overhead irrigation, protects sugar beet from the humidity-susceptible pest. Some Egyptian sugarbeet cultivars appear to be relatively tolerant to the pest.
Scrobipalpa ocellatella aqueous extract of chestnut Castanea sativa Mill.
Larval Occurrence Flight Scrobipalpa ocellatella Double brooded with the first appearing from mid-May to the end of June and the second larger brood from late July to the end of September. Minoranskii also found that irrigation reduced scrobipalpa ocellatella damage.
The pupae of moths have visible scrobipalpa ocellatella appendages, wings and legs which lie in sheaths see examples.
The caterpillars cause the greatest harm scrobipalpa ocellatella dry weather when beet plants lose the most part of their leaves, and the caterpillars injure growing point of beet.
Prevailing parasites are braconids and a fly Chelonella sp. This scrobipalpa ocellatella a dangerous pest of beet, especially sugar beet; to a lesser degree table beet scrobipalpa ocellatella fodder beet. Caterpillars can also feed on other plants of the family Chenopodiaceae pigweed, seablite, saltwort etc.
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The caterpillars skeletonize leaves, braiding them with silk threads. In spring and in the beginning of summer, they mine leaves, usually along main scrobipalpa ocellatella, also piercing holes in petioles. The damaged leaves roll and blacken.
AgroAtlas - Pests - Scrobipalpa ocellatella (Boyd) - Beet Moth
scrobipalpa ocellatella A black clump of rotten leaves fastened with silk threads is formed instead of the central rosette. Caterpillars infect parasites from the family of eulofids. Due to the fact that the damaged root crops rot quickly, harvesting is primarily necessary in the fields where the scrobipalpa ocellatella caused significant damage, and hand it over to the plants for urgent processing.
After harvesting sugar beet and testes, free plantations from plant debris and carry out deep autumn plowing. Eliminate the growing seed of the seed, which creates the conditions for the development of the scrobipalpa ocellatella and fourth generations of the pest.
Carefully discard damaged root crops before storing them in the kagata.