LIFE CYCLE OF GOLDEN BUPRESTID BEETLE, ANA THAXIA ANGUSTIPENNIS KLUG., AND RELATIVE SUSCEPTIBLITY OF CERTAIN MANGO TREE VARIETIES TO INFESTATION WITH SOME INSECT BORERS

The golden buprestid beetle Anathaxia angustipennis Klug , infests many twit and wood trees namely : mango, peach, pear, apricot, fig, apple, citrus, acacia, willow and casuarina . The life cycle of this pest on mango cuttings revealed that the recorded incubation period was 6‌18 days. The immature larva lasted 230-305 days to reach the full-grown larva which elapsed 22-48 days to enter prepupa that passes to pupa after 7-49 days. The pupal duration lasted 4-22 days. The beetle stayed 4-15 days inside pupal chamber, the male beetle lived 4-19 days after emergence, while the female survived 5-26 days. The pre‌oviposition, oviposition and post-oviposition periods were 2-5, 4-14 and 3-6 days, respectively. The female laid 6-21 eggs . Total life cycle indi‌cated that Anathaxia angustipennis beetle had one generation year‌ly, ranged 352-393 days with an average of 367.8±13.3 days. Relative susceptibility of eight mango varieties namely: Timour, Company, Ewase, Mabrouka, Balady, Mesk, Mindy and Zebdia to the in‌festation with some borers showed that type of variety play a role in susceptibility rate. The different mango varieties were descendingly ar‌ranged according to their susceptibility to borers infestation as follows: Ewase > Mabrouka > Mindy > Balady > Zebdia > Mesk > Company > Ti‌mour. On the other hand, total relative infestation of different borers demonstrated that the borers were descendigly arranged according to their infestation of different mango varieties as follows: Enneadesmus obtusedentatus > Hypothenemus eruditus > Sinoxylon sudani‌cum > Chrysobothris dorsata > Belionota scutellaris > Phone-pate Iron tails > Chlorophorus varius > Xyleborus similis.