FIRST REPORT ON THE DEVELOPMENT OF MASTRUS FöRSTER (ICHNEUMONIDAE) SPECIES ON SEEDWORM WHICH DAMAGES ORIENTAL BEECH FRUITS (FAGUS ORIENTALIS): CYDIA AMPLANA HB., CYDIA FAGIGLANDANA ZELLER AND CYDIA S
- Year:
- 2019
- The authors:
- Kostyukov V. V.
- DOI:
- 10.31360/2225-3068-2019-71-202-206
- Page numbers:
- 202 - 206
- Keywords:
- oriental beech, Fagus orientalis, ichneumon wasps, Mastrus, parasites, Cydia, walnut forests of the Caucasus.
For the first time in the foothill and mountain gardens and walnut forests of the Tien Shan and the Caucasus, parasitism was observed among the representatives of the genus Mastrus Förster on seedworms growing in Oriental beech fruits (Fagus orientalis): Cydia amplana Hb., Cydia fagiglandana Hw. and Cydia splendana Hb. The infection of the seedworms developing in beech fruits by Mastrus species varied from 8.7 to 14.7 %, the minimum of the infection level was noted at the end of June, and the maximum – at the end of October. Damage to Fagus orientalis fruits by C. amplana, C. fagiglandana and C. splendana seedworms ranged from 7.8 to 18.7 %.
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