Abstract
The aim of the work was to study the species composition, as well as some behavior, ecology, biology issues, species distribution of the genus Phytomyza and research of cultivated and wild host-plants in Nagorno-Karabakh. Infected plant leaves, larvae and pupae of the mining flies collected from different geographical zones of Nagorno-Karabakh were served as scientific material. Species composition was determined under laboratory conditions after imagoes hatching from mines with larvae and pupae. Three species were identified, they belong to the genus Phytomyza: Phytomyza horticola (Goureau, 1851), Ph. plantaginis (Robineau-Desvoidy, 1851) and Ph. lappae (Goureau, 1851). The polyphagous Ph. horticola species infect mainly the plant species of the families Brassicaceae, Asteraceae and Cucurbitaceae. The monophagous Ph. plantaginis and Ph. lappae species accordingly infect Plantago mayor and Arctium lappa plant species. The paper presents features of the genus, morphology and biology of imago, ecological characteristics of their larvae and pupae, mines, intensity and extensiveness of plant infection. The studies have shown that despite the similarity of some species of the genus in terms of external morphological characteristics, they differ in environments of pupal development, and more accurate identity of the species is determined by studying the reproductive organs. Among the studied species, the mines formed on the lower surface are always longer than the mines on the upper surface of the leaf blade. Methods of variance analysis showed that sexual dimorphism is most expressed among Ph. horticola. Taking into account the significant damage caused by the larvae of the Ph. horticola species to a group of vegetable crops, especially to the onion plant (Allium cepa), it can be included in the list of onion pests. The high damage to the leaves of weed plants by Ph. horticola larvae indicates the prospects of using this miner in the fight against weeds.
Highlights
Григорян Н.М., Оганисян В.С., Галстян А.Г., Балаян К.В
pupae of the mining flies collected from different geographical zones of Nagorno-Karabakh were served as scientific material
Species composition was determined under laboratory conditions after imagoes hatching from mines
Summary
Статья поступила в редакцию / Received: 07.01.2021 Статья принята к опубликованию / Accepted: 25.05.2021. К ФАУНЕ И ЭКОЛОГИИ МИНИРУЮЩИХ МУХ РОДА PHYTOMYZA (DIPTERA: AGROMYZIDAE) НАГОРНОГО КАРАБАХА. Целью работы было изучение видового состава, а также некоторых вопросов поведения, экологии, биологии и распространения минирующих мух рода Phytomyza, их культурных и диких кормовых растений в Нагорном Карабахе. Были выявлены три вида агромизид, принадлежащих к роду Phytomyza: Phytomyza horticola (Goureau, 1851), Ph. plantaginis (Robineau-Desvoidy, 1851) и Ph. lappae (Goureau, 1851). В работе представлены особенности данного рода, морфологии и биологии имаго видов, экологические особенности их личинок и куколок, мин, интенсивность и экстенсивность поврежденности растений. Проведенные исследования показали, что, несмотря на схожесть некоторых видов рода по общим внешним морфологическим свойствам, они отличаются условиями обитания развития куколок, а более точная принадлежность вида определяется изучением полового аппарата. С учетом причиняемого значительного вреда личинок вида Ph. horticola группе овощных культурных растений, в особенности растению лук репчатый (Allium cepa), его можно внести в список вредителей лука. Grigoryan N.M.1, Hovhannisyan V.S.2, Galstyan H.G.1, Balayan K.V.1 1Artsakh State University (Stepanakert, Nagorno-Karabakh Republic)
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