Author(s):
1. Seydi Ahmet Kavakli, Suleyman Demirel University, Turkey
2. Oguzhan Sarikaya, Suleyman Demirel University, Turkey

Abstract:
The common lackey moth (Malacosoma neustria) is among important pest Lepidoptera species due to common and polyphagous species by feeding capacity and ability to high population level. M. neustria is feeding on also orchards and forest shrubs and trees like oak, rose hip, poplar and elm in Turkey. This study was conducted on M. neustria that cause significant damages on rose hip trees in Hocalar province of Afyonkarahisar city that is situated in the inner western part of Turkey. For this aim, field observations and laboratory studies were made during 2017. Egg clusters and larvae were collected and brought to laboratory and pupae and adults were obtained after larval feeding periods in laboratory conditions. M. neustria was determined as the most important pest of Rosa canina in Hocalar province. Larvae were feeding on leaves of rose hip plants and caused heavily damage by forming trees without leaves. Besides damage on rose hip, fruit and Salix spp. trees were affected by damage. This moth was univoltine and larvae started to hatch in the second half of May and also after feeding on leaves mature larvae pupated among leaves in last week of June. Pupae were observed in a white cocoon. Adults emerging from pupae were determined in the beginning of July under laboratory conditions. Also, they started to lay eggs in the mid of July in field. The caterpillars are brown with blue, orange and white stripes and also have long brown hairs. They live gregariously in a silk spun web and grow rapidly. According to measurement in laboratory, the lengths of mature larvae were varied between 42.3 mm and 44.2 mm (mean 42.9). The mean of first star larvae was measured as 1.95 mm (between 1.4 mm and 2.3 mm). Also, the lengths of pupae were between 14.5 mm and 18.3 mm (mean 16.1 mm). Male and female moths have yellowish orange forewings which can vary in shade and crossed by two darker lines. The male has feathered antennae. The wingspans of male were between 1.8 mm and 2.4 (mean 2.1 mm.) and it was measured for females between 3.1 mm and 3.9 mm (mean 3.6 mm). The females lay a band of eggs around twigs. The numbers of eggs in egg batches were varied between 61 and 159 and also the mean diameter of egg clusters and the mean length of egg were measured as 5.2 mm. and 0.9 mm respectively.

Key words:
Malacosoma neustria,Rosa canina,biology,damage,morphology,Turkey

Thematic field:
Forest protection

Date of abstract submission:
18.08.2017.

Conference:
Šumarska nauka u funkciji održivog razvoja šumarstva
25 godina šumarstva Republike Srpske