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Apple - Beetle - Aeolesthes sarta

Developed by European and Mediterranean Plant Protection Organization (Mar. 2006) A. sarta is found in mountains up to an altitude of 2000 m. The area of origin of the pest is thought to be Pakistan and Western India, from which it spread westwards to Afghanistan and Iran and northwards to the Central Asian countries of the former USSR where it was first found in 1911 (in Samarkand, UZ). The pest continues to increase its range in these countries (Orlinskii et al., 1991). Biology Adults usually leave their pupation cells in April or the beginning of May at an average daily temperature of 20°C. They are generally active in the evening and night. During the daytime, they hide under the bark, in larval tunnels, in winter tunnels and in other refuges. After about 20:00, they leave their hiding places, males appearing first, and move about until morning on the surface of the particular tree on which they developed. This species does not fly much and maturation feeding has not been observed. Females lay eggs in slit-like niches in the bark of trunks and large branches shortly after leaving the pupation cells and for about two months. They lay 1–3 eggs at each place. Normally, one female lays 240–270 eggs. The development of larvae in the egg lasts 9–17 days. Hatched neonate larvae are light coloured and about 4 mm long.

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