The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The European corn borer(Ostrinia nubilalis Hbn.) has been causing damage to maize crops (Zea mays L.) in Poland since the 1950s. Initially, this pest occurred on maizeonly in the south-western part of Poland, but since 1994 it has also been observed in the south-eastern part. Monitoring was carried out by the StatePlant Health and Seed Inspection Service (SPHSIS) and the Institute of Plant Protection...
Two field experiments were carried out in Sakha Experimental Station during two seasons to evaluate the efficacy of different treatments (hand combing, butralin,tribenuron-methyl, metosulam and fluazifop-p-butyl) in controlling dodder weed(Cuscuta epilinum Weihe) in Fibre flax. Moreover, the effect of these treatments on some growth characters of flax yield and its components was also determined....
Field trials were conducted with six treatments against the pest complex of olitorius jute var. JRO-524 during 2004and 2005 at Bidhan Chandra Krishi Viswavidyalaya, West Bengal, India. The results revealed that incidence of Anomis sabulifera Guen., Spilarctiaobliqua Wlk., Myllocerus discolor Bohemus, Apion corchori Marshall and Polyphagotarsonemus latus Banks were found causing a minimum of 6.10,...
In this study, Talaromyces flavus a fungal antagonist, was isolated from soil samples collected from tomato fields in Tehran and the Western Azarbayjan provinces of Iran.Antagonistic effects of T. flavus isolates against Verticillium albo-atrum (V. a.-a.), the causal agent of tomato wilt disease were investigated under laboratory and greenhouse conditions. Soil samples from tomato fields in the Varamin...
The studies on seasonal abundance of diamondback moth Plutella xylostella were conducted in two years 2004-2005 and 2005-2006. Survey data of three localities of Aligarhdistrict showed that initial infestation by P. xylostella occurred when the farmers started transplantation of cauliflower seedlings, the density of P.xylostella ranged between 0.90 to 2.38 and 0.27 to 5.84 larvae and pupae/plant in...
The emergence of an unusual Agaricus bisporus mushroom disease first reported in the UK, andlater termed as "mushroom virus X" (MVX), exhibits a wide range of symptoms.Findings from laboratories in the UK, the Netherlands and Ireland indicate that symptomatic MVX mushrooms contain a variable compendium of novel 26 (dsRNA)elements, ranging in size between 20.2 kb and 0.64 kb. Four low molecular...
Field and greenhouse experiments were conducted in 2007 and 2008 to evaluate weed competitiveness and herbicidal sensitivity of grafted tomatoes. Three weed interference levels were established in the field by imposing different weeding pressures. Results indicated that grafting of tomato seedlings did not increase the ability of plants to suppress weeds over self rooted plants. Grafted tomatoes had...
Plantain chips (Musa sapientum L.) were infested with Tribolium castaneum Herbst in the laboratory (64±5% relative humidity and 30±2°C temperature) to evaluate physical and biochemical losses of the chips due to pest damage. Varying levels(4, 8 and 12) of T. castaneum adults were introduced into 20 g plantain chips. An uninfested 20 g of chips served as the control. At 2 and 4 months after infestation...
Fusarium oxysporum f. sp. psidii and F. solani, causal agents of wilt in guava are highly variable pathogens. This study was conducted on cultural and physiological (temperature and pH) characters. The data revealed that maximum mycelial growth was obtained in potato dextrose agar as semi-solid media i.e. 78.00 mm for F. oxysporum f. sp. psidii; 73. 83 mm for F. solani, while malt extract broth as...
In the years 2007–2009, trials on control of codling moth (CM), Cydia pomonella (L.), were carried out in apple orchards of South-East Bulgaria, where the pressure of the pest was very high. Mating disruption with Isomate C plus dispensers was applied in combination with sprays of the virus product Madex®. With a single installation of Isomate C plus dispensers per season + 4 treatments of Madex®...
The effect of infections with Trichoderma aggressivum f. europaeum on the yielding of seven wild and one commercial strain of Agaricus bisporus (Lange) Imbach. was investigated. Wild strains of the mushroom were derived from natural habitats of Poland. The cultivation substrate was inoculated with two different isolates of T. aggressivum f. europaeum Th2. It was found that infections of the substrate...
Treating apple trees and strawberry plants with methyl jasmonate (JA-Me) was investigated to see how the treatment affects the population size of the two-spotted spider mite (Tetranychus urticae Koch.). Both apple and strawberry were represented by two cultivars: Jester, Close and Aga, Kent, respectively. Each plant was infested with mites one day after being treated with a methyl jasmonate (JA-Me)...
Occurrence of sharp eyespot was determined in the period 2006–2008, on commercial fields of spring cereals, localized in northern and central Poland. Percent of infected stems, and the disease index were evaluated. Occurrence of sharp eyespot on spring cereals, especially on oat, was low. Slight infection was mostly observed. In some farm fields, disease symptoms were not observed. A significant difference...
Four soil-borne cereal viruses have been identified in Poland, so far: Soil-borne cereal mosaic virus (SBCMV), Wheat spindle streak mosaic virus (WSSMV), Barley yellow mosaic virus (BaYMV) and Barley mild mosaic virus (BaMMV). SBCMV was identified in 1993 as a dangerous pathogen of winter cereals and became the object of special interest. Studies on the virus included its biological and molecular...
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...
Phytophthora citrophthora was isolated from grafted lilac (Syringa vulgaris). Showing browning of leaf blade edge and necrosis spreading on all leaves. On the stem bases, beginning from the grafted place, necrosis had even spread 20 cm upward, whereas root stock shoots and roots were healthy. Using rhododendron leaves as the bait, Phytophthora citrophthora was isolated from soil where growing plants...
Insect growth regulators generally have a selective effect on the target insects and have practically no apparent side effect on non-target organisms especially vertebrates. Hence, insect growth regulators could be a suitable choice to control pests in stored products. Ten-day-old larvae of Indian meal moth Plodia interpunctella (Hübner) were expressed to the juvenile hormone analogue pyriproxyfen...
A total of seventeen isolates of Aspergillus flavus from maize were collected from different agro-ecological zones of Tamil Nadu, India. The isolates were tested for their ability to produce aflatoxin B1 (AFB1) in vitro by indirect competitive enzyme-linked immunosorbent assay (ELISA). The amount of AFB1 produced by the isolates of A. flavus ranged from 1.9 to 206.6 ng/ml. Among the various isolates...
70 samples of insects caught in a Johnson suction trap were taken during the vegetative period in 2009. The trap was sited in the Experimental Station Institute of Plant Protection – National Research Institute in Winna Góra, Poland. The samples contained 2 869 beetles (Coleoptera) of which 393 (13.7%) are known as stored product pests. 63 specimens of beetle Rhizopertha dominica (F.) were caught...
The susceptibility of the nut-leaf weevil, Strophosoma melanogrammum (Forster) (Coleoptera; Curculionidae) to the selected strains of Beauveria bassiana (Bals.-Criv.) Vuillemin, Isaria farinosa (Holm) Brown & Smith, I. fumosorosea (Wize) Brown & Smith, Metarhizium anisopliae (Metschnikoff) Sorokin and M. flavoviride Gams & Rozsypal, was tested under laboratory conditions. Two ways of insect...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.