List of publications on a keyword: «вредители»

The article describes a noctuid moth Cosmia affinis as a pest of deciduous trees. The main purpose of the work is to determine the percentage of damaged deciduous trees of different types, which were damaged by the pest noctuid moth and the influence of climatic factors on their numbers. The main work results are the following: calculated percentage of the trees leaf blades damage, the researcher has indicated the percentage of deciduous trees, damaged by noctuid moth, presented a phenocalendar of a noctuid moth Cosmia affinis development and the occurrence of pests’ frequency in number.

The article describes a chinch bug Arocatus melanocephalus as a pest of deciduous trees. The main purpose of the work is to determine the percentage of damaged deciduous trees of different types, which were damaged by the pest bug and the influence of climatic factors on their numbers. The main work results are the following: calculated percentage of the trees leaf blades damage, the researcher has indicated the percentage of deciduous trees, damaged by bugs, presented a phenocalendar of a chinch bug development and the occurrence of pests’ frequency in number.

In the All-Russian Plant Quarantine Center the DEBUZZZER, dried diatomite powder of light beige color, has been presented by the Diamix Company for official testing in order to obtain the state registration of the Ministry of Agriculture. This article presents the results of laboratory studies of the DEBUZZZER preparation based on the diatomite against pests of stocks while processing wheat grain. It also shows the effectiveness of the DEBUZZZER against adult species of grain and rice weevils, their total death occurred on the 6th and 14th days accordingly, and the weight loss was up to 50%. The authors present the susceptibility to this drug by the imago of large and small meal worm, which was used to process the grain, and it caused 100% mortality on the 6th and 14th days and a decrease in the weight of test objects by 41.8 and 60.6%, accordingly. The vital activity of the larvae of the yellow mealworm beetle has decreased as a result of weight loss by 41.8%. However, the larvae remained viable and developed till pupal stage and imago despite weight loss, and death was indicated in only 6.7% of the species. The DEBUZZZER diatom powder implementation was not effective enough against the larvae of two species of Trogodermaspp.: khapra beetle and warehouse beetle, their mortality was 11.7 and 3.3% on the 20th day, accordingly. According to the authors, more frequent processing of the stored products is necessary for successful pest control.

The article describes a chinch bug Kleidocerys resedae (Panzer, 1797) as a pest of deciduous trees. The main purpose of the work is to determine the percentage of damaged deciduous trees of different types, which were damaged by the pest bug and the influence of climatic factors on their numbers. The main work results are the following: calculated percentage of the trees leaf blades damage, the researcher has indicated the percentage of deciduous trees, damaged by bugs, presented a phenocalendar of a chinch bug development and the occurrence of pests’ frequency in number. The author concluded that the main limiting factor, affecting the increase in the number of bugs is a high moisture level in Almaty.

Изучено влияние препаратов Фитоверм‐М и Сочва на численность малинно‐земляничного долгоносика и земляничного листоеда, а также урожайность земляники садовой, рассчитана экономическая эффективность данных препаратов.

Автор отмечает, что крупнейший производитель сельскохозяйственной продукции на юге России – это Предкавказье, где озимая пшеница является основной сельскохозяйственной культурой. В последние годы численность основных вредителей превышает экономический порог вредоносности. Возникает необходимость в периодических исследованиях видового состава насекомых на посевах озимой пшеницы.

В данной статье автор представляет годовой экономический эффект и рентабельность проводимых защитных мероприятий, определение которых обязательно при экономической оценке химических обработок озимой пшеницы. Исследователем приводится расчет экономической эффективности, произведенный для оценки препаратов с точки зрения их конкурентной способности в складывающихся на данный момент рыночных условиях.

В статье рассматриваются результаты изучения карантинных чешуекрылых в условиях центральной части Приханкайской равнины Приморского края: видовое разнообразие, закономерности распределения и биотопическая приуроченность отдельных видов в зависимости от типа землепользования в местах локализации очагов. Авторы обнаружили карантинные чешуекрылые в районе исследования, представленные четырьмя видами полифагов.