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The rules and guidelines for integrated pest management specified in Annex III, sections 2 and 3, state “General principles of integrated pest management”: Harmful organisms must be monitored by adequate methods and tools, where available. Such adequate tools should include observations in the field as well as scientifically sound warnings, forecasting and early diagnostic systems, where feasible, as well as advice from professionally qualified advisors. As part of Multiannual Programs, the Institute of Plant Protection – NRI in Poznań has been carrying out work and research for many years to develop or modify guidelines for monitoring short- and long-term forecasting of pest occurrence on crops. These guidelines are extremely helpful for farmers and advisers in determining the optimum date of chemical control of pests on plants. Regularly revised and improved the guidelines deal with pests which currently pose a threat to crops. They are developed according to the latest scientific findings and are successfully promoted among professional users and agricultural advisors. These guidelines are standardized to include descriptions of species, life cycles, symptoms of damage/infestation of crops, methods of observation targeted at warning of the need for plant protection treatments, and threshold values of harmfulness. All guidelines include extensive photographic material. Guidelines for the monitoring of pests on orchard plants, vegetables and others are prepared at the Institute of Soil Science and Plant Cultivation − NRI in Puławy and the Institute of Pomology in Skierniewice. Guidelines for about 80 pests of crops are available for public use in the on-line Pest Warning System (Platforma Sygnalizacji Agrofagów, www.agrofagi.com.pl).
One of common cereal pests in Poland are flies of the Agromyzidae family. The larvae of these flies is the stage which is harmful. Leaf miner larvae feeding on the leaf parenchyma cause characteristic damage (mines). Their widespread occurrence contributes to a reduction in leaf assimilation surface. Leaf miner larvae mostly damage first-flag and second leaves. Their damage has a negative effect on the yield parameters. Locally they cause losses of economic significance. The flight of leaf miner imagines coincides with the development of leaf beetles (Oulema spp.), another dangerous cereal crop pest. The aim of the conducted research was to determine the optimum time for chemical treatment of leaf mining flies and leaf beetles as part of integrated cereal protection. To achieve that aim, field experiments were conducted in the years 2008–2009 at the Research Station for Variety Testing in Słupia Wielka (the county of Środa Wielkopolska) using winter wheat of the Bogatka variety. Values monitored included the dynamics of flight for leaf mining flies along with the speed of leaf beetle development. The accuracy of the suggested dates was measured by the quantity of the yield obtained. Additionally, the species composition of Agromyzidae damaging winter wheat was also analyzed. During the years of the research, the biggest yields were obtained when both pest species were chemically treated during the period when the leaf mining flies were abundant and when the oldest leaf beetle larvae reached the size of about 2 mm (in the year 2008) and about 4 mm (in the year 2009). It was also determined that the species composition of Agromyzidae damaging winter wheat changes between particular years.
During the 2011–2012 the research on optimal treatment time to control cabbage root fly on cabbage crops was carried out. The study focused on determining the suitability of allylisothiocyanate-baited traps to control Delia radicum L. on cabbage crops. Treatment time was determined based on a number of captured females. During cabbage harvesting time an analysis of a root damaged caused by cabbage root fly larva was done. The results show a high efficacy of used monitoring system in control of D. radicum on cabbage crops. Flight monitoring method could be useful for control cabbage root fly in Integrated Pest Management.
The paper presents harmfulness estimation of the most important diseases and pests occurring in main agricultural and horticultural crops in Poland in 2009. Presented data are based on the results of field observations provided by Plant Health and Seed Inspection Service Inspectors. In 2009 the increase of agrophages’ occurrence was recorded in cases of: Blumeria graminis DC., Puccinia recondita Rob. ex Desm. f. sp. tritici (Erikss.) C.O. Johnson, Phaeosphaeria nodorum (Müller) Hedjaroude, Rhopalosiphum padi L., Sitobion avenae F., – on wheat, Phytophthora infestans (Mont.) de Bary – on potato, Cercospora beticola Sacc. – on sugar beet, Leptosphaeria spp., Meligethes aeneus F., Ceutorhynchus assimilis Payk., Dasyneura brassicae Winn. – on rape, Phytophthora infestans (Mont.) de Bary, Pseudoperonospora cubensis (Berk. et Curt.) Rostovzev, Pseudomonas syringae pv. lachrymans (Sm. et B.) Young, Peronospora destructor (Berk.) Fr., Chamaepsila rosae Fabr. – on vegetable crops, Cydia pomonella L. – in orchards comparing to 2008.
First outbreaks of the pine wood nematode in Portugal and in Europe were reported in May 1999 on the Setúbal Peninsula (about 30 km from Lisbon) on Pinus pinaster. The demarcated zone originally 306 000 ha, currently covers the whole Portuguese mainland and the Island of Madeira. In Spain this nematode was reported first time in Nevember 2008 in Extramadura region (close to the border with Portugal) on one tree of Pinus pinaster with the symptoms of the pine wilt disease. In Portugal the current efforts to reduce the pine wood nematode spread are not effective enough. Because of a risk of the pine wood nematode occurrence in other part of Europe, all countries of the European Union take action to prevent further spread of the nematode on their territory.
In 2006–2009, the occurrence of leaf rollers was monitored in three different regions of Poland. The results of observations suggested diversified number of rollers in different regions and over different years. The highest number of recorded Archips rosanus rollers was in 2008, whereas Pandemis heparana roller peak occurred in 2007. Since 2007, in the region of Central Poland, the number of Adoxophyes orana and Spilonota ocellana roller systematically increased. A. orana roller occurred in high intensity throughout all the orchards in which conducted the research. Considerable differences were stated in dates of moths’ flight initiation within individual orchards and vegetative seasons. The dynamics of moths’ flight was also differentiated. Because of this there is a need of scheduling different treatment dates for each region and orchard.
Studies concerning the occurrence of Anarsia lineatella on peach trees planting were carried out in the vicinity of Lublin in 2008–2009. Pheromone traps of Delta type were used to catch males. The study results revealed the presence of two generations of peach twig borer. The moth flight of particular generation was extended in time and lasted about one and a half month. Because of growing of peach and apricot cultivations, a large area of plum trees planting in our country and the possibility of occurrence of these pest on apple trees regular monitoring should be carried on.
The European corn borer (Ostrinia nubilalis Hbn.) is the most dangerous pest of maize (Zea mays L.) in Poland, requiring intensive control with agrotechnical method for instance by cultivating varieties less damaged by caterpillars, biological measures, and, application of chemical products as last available option. A precise monitoring of the species presence in maize fields is necessary to determine accurately a need and a date for setting out bioformulations containing Trichogramma spp. Currently, nationwide monitoring of O. nubilalis presence is conducted by the Main Inspectorate of Plant Health and Seed Inspection, using mainly pheromone traps characterised by low effectiveness in catching moths (males). On a small scale, regional monitoring is also conducted by the Institute of Plant Protection – National Research Institute, whose decisions about a need and a date for O. nubilalis control are based on simultaneous use of several observation methods. These methods include: observation of moth flights from postharvest maize residues (in entomological chambers), use of light and pheromone traps (of various types and with various pheromones), and observation of egg laying and caterpillar hatching dynamics. By combining several independent observation methods it is possible to precisely determine an optimal time for biological and chemical control of O. nubilalis, thus it is necessary to establish a national network for monitoring that pest with all known methods, covering all Poland.
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