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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Agronomy and Animal Industries</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Agronomy and Animal Industries</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Агрономия и животноводство</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-797X</issn><issn publication-format="electronic">2312-7988</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">19996</article-id><article-id pub-id-type="doi">10.22363/2312-797X-2024-19-1-128-138</article-id><article-id pub-id-type="edn">AHYHPT</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Plant protection</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Защита растений</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Biological effectiveness of insecticides in pear psylla control</article-title><trans-title-group xml:lang="ru"><trans-title>Оценка биологической эффективности инсектицидов в контроле численности грушевой медяницы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2268-1279</contrib-id><contrib-id contrib-id-type="spin">6686-9037</contrib-id><name-alternatives><name xml:lang="en"><surname>Podgornaya</surname><given-names>Marina E.</given-names></name><name xml:lang="ru"><surname>Подгорная</surname><given-names>Марина Ефимовна</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Biological Sciences, head of Laboratory of Protection and Toxicological Monitoring of Perennial Agrocenoses</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, заведующая лабораторией защиты и токсикологического мониторинга многолетних агроценозов</p></bio><email>podgornayame@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4012-4457</contrib-id><contrib-id contrib-id-type="spin">2418-6797</contrib-id><name-alternatives><name xml:lang="en"><surname>Didenko</surname><given-names>Nadezhda A.</given-names></name><name xml:lang="ru"><surname>Диденко</surname><given-names>Надежда Александровна</given-names></name></name-alternatives><bio xml:lang="en"><p>Junior Researcher, Laboratory of Protection and Toxicological Monitoring of Perennial Agrocenoses</p></bio><bio xml:lang="ru"><p>младший научный сотрудник лаборатории защиты и токсикологического мониторинга многолетних агроценозов</p></bio><email>didenko-n.a@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6416-3798</contrib-id><contrib-id contrib-id-type="spin">3652-3020</contrib-id><name-alternatives><name xml:lang="en"><surname>Prah</surname><given-names>Svetlana V.</given-names></name><name xml:lang="ru"><surname>Прах</surname><given-names>Светлана Владимировна</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Biological Sciences, Senior Researcher, Laboratory of Protection and Toxicological Monitoring of Perennial Agrocenoses</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, старший научный сотрудник лаборатории защиты и токсикологического мониторинга многолетних агроценозов</p></bio><email>sp41219778@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7680-7511</contrib-id><contrib-id contrib-id-type="spin">6853-1941</contrib-id><name-alternatives><name xml:lang="en"><surname>Vasilchenko</surname><given-names>Anfisa V.</given-names></name><name xml:lang="ru"><surname>Васильченко</surname><given-names>Анфиса Витальевна</given-names></name></name-alternatives><bio xml:lang="en"><p>Junior Researcher, Laboratory of Protection and Toxicological Monitoring of Perennial Agrocenoses</p></bio><bio xml:lang="ru"><p>младший научный сотрудник лаборатории защиты и токсикологического мониторинга многолетних агроценозов</p></bio><email>anfisavv@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">North Caucasian Federal Scientific Center of Horticulture, Viticulture, Winemaking</institution></aff><aff><institution xml:lang="ru">ФГБНУ «Северо-Кавказский федеральный научный центр садоводства, виноградарства, виноделия»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2024</year></pub-date><volume>19</volume><issue>1</issue><issue-title xml:lang="en">Factors of sustainable animal productivity:  from genomics to therapy</issue-title><issue-title xml:lang="ru">Факторы устойчивой продуктивности животных: от геномики до терапии</issue-title><fpage>128</fpage><lpage>138</lpage><history><date date-type="received" iso-8601-date="2024-04-13"><day>13</day><month>04</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Podgornaya M.E., Didenko N.A., Prah S.V., Vasilchenko A.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Подгорная М.Е., Диденко Н.А., Прах С.В., Васильченко А.В.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Podgornaya M.E., Didenko N.A., Prah S.V., Vasilchenko A.V.</copyright-holder><copyright-holder xml:lang="ru">Подгорная М.Е., Диденко Н.А., Прах С.В., Васильченко А.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://agrojournal.rudn.ru/agronomy/article/view/19996">https://agrojournal.rudn.ru/agronomy/article/view/19996</self-uri><abstract xml:lang="en"><p style="text-align: justify;"><italic>Psylla pyri</italic> L. is the pear dominant pest, which damage can reach 70…90 %. 5–7 generations of the insect can develop during one growing season in the south of Russia. Phytophage is difficult to control due to development of insecticide resistance and presence of different growth stages at the same time in summer. Therefore, the research aim was to identify the most effective insecticides with various modes of action that restrain the number and development of pear psylla nymphs. The research tasks were to clarify biological features of pear psylla development and to determine effectiveness of insecticides with various modes of action in controlling <italic>P. pyri</italic> L. population. Pear psylla development in Prikubansky zone of the Krasnodar region was studied and the results were presented. During the research years, the sum of effective temperatures necessary for: start of egg laying was 40 °C (at a threshold of 6 °C); beginning of larvae hatching was 121…122 °C; period from egg to imago — 300 °C. Pest development monitoring showed that the insect has 6 full generations in the growing season. Field experiments were conducted with ‘Leven’ pear variety in Prikubansky zone, central gardening subzone of the Krasnodar Territory on the basis of genetic collection of North Caucasian Federal Scientific Center of Horticulture, Viticulture, Winemaking in 2021–2022 to determine biological effectiveness of insecticides. The results revealed that chemicals based on juvenoids and chitin synthesis inhibitors were not inferior in effectiveness to chemical insecticides. The two-year studies showed that the highest effectiveness after a single application of the chemicals Akarb, WDG (250 g/kg fenoxycarb) and Dimilin, WDG (800 g/kg diflubenzuron) was on the 10th day and amounted to 83.3…91.7 %, which was higher than the effectiveness of the standard.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;"> <italic>Psylla pyri</italic> L., или грушевая медяница, — доминирующий вредитель груши, ущерб от вредоносности которой может достигать 70…90 %. Это поливольтинный вредитель, за один вегетационный сезон на юге России может развиваться до 5–7 поколений, накладывающихся одно на другое. Фитофага трудно контролировать из-за развития устойчивости к применяемым инсектицидам, присутствия одновременно всех фаз развития в летний период, поэтому целью исследований стало выявление наиболее эффективных инсектицидов различного механизма действия, сдерживающих численность и развитие нимф <italic>P. pyri</italic> L. В задачи исследования входило уточнение биологических особенностей развития обыкновенной грушевой медяницы и определение эффективности инсектицидов различного механизма действия в контроле численности <italic>P. pyri</italic> L. Представлены результаты исследований по динамике развития грушевой медяницы в Прикубанской зоне Краснодарского края. В годы исследований отмечена сумма эффективных температур, необходимая: для начала яйцекладки — 40 °C (при пороге 6 °C), начала отрождения личинок — 121…122 °C, периода от яйца до появившегося имаго — 300 °C. Мониторинг за динамикой развития фитофага показал, что вредитель в течение вегетационного сезона развивается в 6 полных поколениях. Показаны результаты мелкоделяночных полевых опытов по определению биологической эффективности инсектицидов, проведенных в 2021–2022 гг. в Прикубанской зоне, центральной подзоне садоводства Краснодарского края на базе генетической коллекции центра коллективного пользования (ЦКП) Северо-Кавказского федерального научного центра садоводства, виноградарства, виноделия на груше сорта Левен. Выявлено, что применение препаратов на основе ювеноидов и ингибиторов синтеза хитина не уступают по эффективности химическим инсектицидам. Проведенные в течение двух лет исследования показали, что максимальная эффективность после однократного применения препаратов Акарб, ВДГ (250 г/кг феноксикарб) и Димилин, ВДГ (800 г/кг дифлубензурон) была на 10-е сутки и составляла 83,3…91,7 %, что выше эффективности стандарта.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Psylla pyri L</kwd><kwd>pear psylla</kwd><kwd>Psylla pyri L</kwd><kwd>sum of effective temperatures</kwd><kwd>dynamics of insect flight</kwd><kwd>phytophage</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>обыкновенная грушевая медяница</kwd><kwd>сумма эффективных температур</kwd><kwd>динамика лета</kwd><kwd>фитофаг</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Исследование выполнено в рамках государственного задания ФГБНУ СКФНЦСВВ (№ FGRE-0498–2022–0003).</institution></institution-wrap><institution-wrap><institution xml:lang="en">The work was performed on a government assignment of North Caucasian Federal Scientific Center of Horticulture, Viticulture, Winemaking (no. 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