Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Lepidoptera - pests of fruits in the Maritime Province.

Abstract

Carposina sasakii Mats., Cydia (Grapholitha) funebrana (Treitschke), C. (Laspeyresia) pomonella (L.), C. (G.) inopinata (Heinr.), Spilonota prognathana (Sn.), Numonia pirivorella (Mats.) and Argyresthia sp. are widespread pests in orchards in the Maritime Province of the Soviet Union. C. sasakii mainly damages pears, then apples and apricots and, sometimes, plums. Full-grown larvae overwinter in the soil at depths of 3-12 cm in thick cocoons, which differ in size and shape from the summer cocoons in which pupation takes place. C. funebrana damages mainly plums, but also apricots and Morello cherries. The larvae overwinter in oblong earthen cocoons mainly in the soil near the roots. There are 2-3 generations a year. The larvae of C. pomonella overwinter in silken cocoons under the bark of trunks, in the soil near the roots, in packing boxes, on wooden supports, etc. C. inopinata is a pest of apples. The larvae overwinter in cocoons under the bark of trunks, in the soil near the roots and in plant remains. There is one generation a year. S. prognathana damages the buds and leaves of pear and the leaves and fruits of apple. The larvae overwinter in cocoons in fallen leaves, near roots and on branches. First- and second-instar larvae of N. pirivorella overwinter in leaf and fruit buds that die in autumn but do not fall. Argyresthia damages apples. The pupae overwinter in cocoons in the surface soil, in fallen leaves and, less frequently, at the bases of trunks. The methods used for control are outlined.