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This paper presents the assessment of the biological effectiveness of viral preparations Fermovirin CpGV for apple protection from the codling moth and Fermovirin HA for protection of tomatoes, maize, and soy from the bollworm. The effectiveness of these insecticides is shown to depend on weather conditions in the vegetation period. 相似文献
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Olesya I. Zhuravleva Alexandr S. Antonov Vo Thi Dieu Trang Mikhail V. Pivkin Yuliya V. Khudyakova Vladimir A. Denisenko Roman S. Popov Natalya Y. Kim Ekaterina A. Yurchenko Andrey V. Gerasimenko Anatoly A. Udovenko Gunhild von Amsberg Sergey A. Dyshlovoy Shamil S. Afiyatullov 《Marine drugs》2021,19(1)
Seven new deoxyisoaustamide derivatives (1–7) together with known compounds (8–10) were isolated from the coral-derived fungus Penicillium dimorphosporum KMM 4689. Their structures were established using spectroscopic methods, X-ray diffraction analysis and by comparison with related known compounds. The absolute configurations of some alkaloids were determined based on CD and NOESY data as well as biogenetic considerations. The cytotoxic and neuroprotective activities of some of the isolated compounds were examined and structure-activity relationships were pointed out. New deoxyisoaustamides 4–6 at concentration of 1 µM revealed a statistical increase of PQ(paraquat)-treated Neuro-2a cell viability by 30–39%. 相似文献
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It is shown that the modern assortment of fungicides for controlling head blight of cereals is represented by ecologically low-hazard preparations with a toxic load not exceeding 225?C273.9 semilethal doses per hectare. All fungicides limited the development of head blight as well as grain infection in a latent form. Maximum effectiveness was provided by the preparations Zamir, EW at an application rate of 1.2 L/ha; Amistar Trio, EC and Orius 250, AE, 1.0 L/ha each; and Acanto Plus, SC, 0.6 L/ha. 相似文献
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Yuliya V. Bolotova 《American Journal of Potato Research》2017,94(5):567-571
An analysis of the relationship between potato prices and potato production is important for understanding industry developments. The analysis of the effect of potato production on potato prices was presented in two AJPR articles: Pavlista and Feuz (American Journal of Potato Research 82:339–343, 2005) and Loy et al. (American Journal of Potato Research 85:438–444, 2011). The articles estimated inverse potato demand in the U.S. and Germany, respectively, during the period of 1980–2003. They hypothesized that the potato price response to changes in potato production may be affected by a shift in consumer demand towards increasing consumption of processed potatoes in the U.S. and by socio-economic changes in Germany. This paper extends the existing research by analyzing the recent price developments in the U.S. potato industry. The empirical results indicate that the potato price response to changes in potato production was different during the period of 2005–2010, as compared to the periods of 1993–2004 and 2011–2016, which coincided with the implementation of the potato acreage management program. 相似文献
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Data on assessment of biological efficiency of insectoacaricides based on Abamectin and Emamectin benzoate, metabolites of soil actinomyces, for farm crop protection systems against pests are presented. Efficiency of new products not yet included in the Federal Catalogue of Pesticides was studied. These were Mekar (ME, 18 g/L of abamectin) against the apple sucker (Psylla mali Schmid.) in Orel and Tambov oblasts and Krasnodar krai, against mites in apple trees in Rostov, Tambov, and Orel oblasts, and Yunona (ME, 50 g/L of emamectin benzoate) against codling moth in Rostov oblast and Krasnodar krai. The trials conducted on assessment of effects of new local products created on the basis of actinomyces metabolites confirmed a high biological efficiency in the regulation of the pest of apple trees. Mekar (ME, 18 g/L) and Yunona (ME, 50 g/L) may be recommended for the control of pest apple trees in biologized and adaptively integrated plant protection systems after their registration in Russia. 相似文献
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The following benzoylurea chitin synthesis inhibitors—diflubenzuron used in Dimilin and Gerold formulations, lufenuron registered as Match, and a Lufox combined insecticide based on two active ingredients, lufenuron and fenoxycarb (juvenoid)—have been tested. The effectiveness of the Dimilin insecticide in regulating the codling moth (Cydia pomonella L.) population was assessed in Tambov oblast, Rostov-on-Don oblast, and Krasnodar krai in 2010–2011. Reduction of damage in the harvested fruit at the maximum application rate comprised 90–100% in all the regions. The biological effectiveness of the Gerold preparation in regulating the complex population consisted of leafrollers and currant bud moths (Incurvaria capitella Cl.) and comprised 85–87% in the Tambov oblast and reached 100% in the Orel and Leningradskaya oblasts (2012–2014). The field tests to assess the biological effectiveness of the Match insecticide in regulating the population of cotton worm (Heliothis armigera Hb) in Krasnodar krai and Astrakhan oblast proved that the preparation was capable to reduce the number of the cotton worm larvae on tomato plants (up to 99.0%). The Lufox combined insecticide effectively reduced the larval population of codling moth and, hence, the damage of apple fruit in Krasnodar krai and Rostov-on-Don oblast (up to 96.8%). The tested plant protection products are recommended for use in the ecologized systems. 相似文献