PT  - JOURNAL ARTICLE
AU  - Urban, Jaroslav
TI  - The biology of Anacampsis populella (Clerck) (Lepidoptera, Gelechiidae)
DP  - 2014 Sep 15
TA  - Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
PG  - 223--232
VI  - 58
IP  - 4
AID - 10.11118/actaun201058040223
IS  - 12118516
AB  - The paper deals with the occurrence, development and harmfulness of Anacampsis populella (Clerck) (Gelechiidae) on Populus tremula L. The pest was monitored on 5 to 15-year old trees of the species at Forest District Bílovice nad Svitavou (near the city of Brno) in 2008 and 2009. Caterpillars made leaf rolls of a mean length of 37.3 mm and width 5.5 mm there. In 80% leafrolls, one leaf was rolled up and in 20% two to five leaves. Towards the abaxial face of leaves, all leaves with caterpillars were rolled up but only part of peripheral leaves. Caterpillars occurred from 20 April to 25 June. They developed only through three instars and damaged leaves on an area of about 12.2 cm<sup>2</sup>. Grown up caterpillars pupated mostly in leafrolls. Pupae occurred from 10 May to 25 July and imagoes from 20 May to the beginning of August. Some 63 to 88% population of caterpillars and pupae were killed by natural enemies (particularly insect parasitoids, insect predators and birds). Eggs overwinter. The pest development is univoltine.