Wyniki wyszukiwania - AGRO

1

The evaluation of a UK tripartite health and safety initiative to control chemicals in agriculture

100%

Watterson A. E.

Annals of Agricultural and Environmental Medicine

|

1994

|

tom 01

|

nr 2

2

The potential of Aglais urticae L. for biological control of Parietaria pensylvanica Munhelem. ex Willd.

88%

Piesik D., Wyrostkiewicz K., Sawilska A.

Electronic Journal of Polish Agricultural Universities. Series Agronomy

|

1998

|

tom 01

|

nr 1

Chemical control of weeds in some environments and due to the condition and degree of weed-growth does not bring expected results. For that reason alternative methods have been searched for. Biological control of weeds has been traditionally perceived as reducing the agrophage population to such a level where they do not constitute a threat. In the present research, an attempt has been made to introduce Aglais urticae L. to control the population of Parietaria pensylvanica M. ex. Willd.

3

The effects of fungicides on Fusarium oxysporum f. sp. lycopersici associated with Fusarium wilt of tomato

75%

Amini J., Sidovich D. F.

Journal of Plant Protection Research

|

2010

|

tom 50

|

nr 2

172-178

Tomato fusarium wilt is considered as one of the most important diseases of tomato both in field and greenhouse - grown tomatoes worldwide. In presented research, six fungicides; benomyl, carbendazim, prochloraz, fludioxonil, bromuconazole and azoxystrobin, were evaluated for their efficacy against the disease casual agent Fusarium oxysporum f. sp. lycopersici in vitro and in vivo. Seven different concentration (0.0001, 0.001, 0.01, 0.1, 1, 10, 100 μg/ml) were used for assessment of their inhibitory activities against the pathogen through mycelial growth inhibition on potato media. Four concentrations of above mentioned fungicides (0.1, 1. 10 and 100 μg/ml) were tested for controlling Fusarium wilt on tomato plants in glasshouse. Fungal radial growth was measured and median effective concentration (EC50) values (μg/ml) determined. The result of glasshouse tests revealed a different degree of efficacy of all tested fungicides in reducing disease infestation. Prochloraz and bromuconazole were the most effective fungicides against the pathogen both in vitro and in vivo, followed by benomyl and carbendazim. All other fungicides were less effective. Conserning the application date of fungicides it was shown that they were less effective when applied 7 days after tomato plant infection, compared with 1 day prior infection. No phytotoxic symptoms were observed after the application of prochloraz, bromuconazol and benomyl when used at recommended doses, especially on seedlings. However both fungicides fludioxonil and bromuconazole were shown to be phototoxic to tomato seedlings.

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Efficiency of gaseous ozone in disinfection of mushroom growing rooms

75%

Szumigaj-Tarnowska J., Szafranek P., Ulinski Z., Slusarski C.

Journal of Horticultural Research

|

2020

|

tom 28

|

nr 2

5

Reduction of chemical control in winter barley cultivar mixtures

75%

Tratwal A., Nadziak J., Jakubowska M.

Journal of Plant Protection Research

|

2004

|

tom 44

|

nr 1

Monoculture of modern cereal crops are popular due to the technical and organizationalreasons. They are easier in crop husbandry, quality and product use. However, in monoculture chemical protection of crops is a norm, due to the fact that they are more susceptible to diseases, pests and sometimes weed infestation. In order to keep high and stable grain yields and quality in monoculture one has to use high inputs. Experimentally and practically it has been proved that cultivar and species mixtures can constitute an alternative to cultivar growing in pure stands. It has been found that in mixtures opperate different epidemiological and ecological factors, which lead to considerable disease reduction, pest and weed control, which finally result in higher and more stable grain yields than in barley varietes grown in pure stands. The results of two years field experiment designed to evaluate epidemiological and economical effects of winter barley cultivar mixtures are presented. The studies were carried out in two sites – ExperimentalStation for Variety Testing Słupia Wielka (in Wielkopolska region) and Plant Breeding Station Bąków (Opole District). This two sites were 300 km away from each other, and had different soiland meteorological conditions. In the experiment impact of different barley cultivars and their different two- and three-component mixtures were tested with reduced dosages of fungicidies on grain yield in the mixtures compared with pure stands were evaluated.

6

Efficacy of some new formulations and new insecticides in controlling the strawberry blossom weevil [Anthonomus rubi Hbst.] on strawberry

75%

Labanowska B. H.

Journal of Fruit and Ornamental Plant Research

|

2002

|

tom 10

7

The economic effect of chemical control of phytophagous bugs (Heteroptera, Miridae) in seed carrot fields

63%

Korcz A.

Prace Naukowe Instytutu Ochrony Roślin

|

1975

|

tom 17

|

nr 1

8

Sensitivity of winter wheat cultivars to selected herbicides

63%

Kieloch R., Rola H.

Journal of Plant Protection Research

|

2010

|

tom 50

|

nr 1

35-40

The experiments on tolerance of winter wheat cultivars to herbicides were performed under field conditions during 2003-2005 in the region of Wrocław (South-West of Poland). Five cultivars were examined (Zyta, Tonacja, Sukces, Clever, Kobra). Two herbicide mixtures: isoproturon + pendimethalin and diflufenican + flurtamon were applied in the autumn, in stage of 3-4 leaves. In the spring, when wheat reached stage of full tillering, the following herbicides were used: florasulam + 2.4-D and fluroxypyr + 2.4-D. Phytotoxicity of herbicides was determined on the base of plants vigour assessment, plants counting, yield and some yield components. During the experimental period, impact of the mixture pendimethalin + isoproturon on grain yield of Clever cultivar was observed only in the season with hard winter conditions (2002/2003). The remaining varieties: Zyta, Tonacja, Sukces and Kobra were completely tolerant to this herbicide mixture. Mild winter seasons did not show a negative influence of herbicides on grain yield of tested varieties. All cultivars showed a complete tolerance to diflufenican + flurfamon and florasulam + 2.4-D. The mixture fluroxypyr + 2.4-D caused ear deformation of all tested wheat cultivars, but did not affect negatively grain yield.

9

Evaluation of chemical weed control strategies in biomass sorghum

63%

Pannacci E., Bartolini S.

Journal of Plant Protection Research

|

2018

|

tom 58

|

nr 4

Two field experimental trials were carried out in central Italy, in 2005 and 2006, on biomass sorghum [Sorghum bicolor (L.) Moench] in order to assess weed control efficacy and selectivity to the crop of some pre- and post-emergence herbicides applied at different doses and in different mixtures. All herbicides showed good selectivity to the crop, although postemergence treatments showed higher transitory phytotoxicity effects than pre-emergence treatments, especially when high temperatures occurred after treatments, decreasing the selectivity of leaf herbicides (i.e. MCPA, 2,4-D, bromoxynil and dicamba). Considering pre-emergence applications, terbuthylazine alone against broadleaves or in mixtures at low doses with s-metolachlor against mixed infestations (grasses + broadleaves), seemed to be the best options to obtain a good selectivity to the sorghum and a high weed control level. Aclonifen showed some limits in terms of weed spectrum and could be recommended only against simplified broadleaf weed infestations without the presence of less susceptible weeds, like Amaranthus retroflexus, Portulaca oleracea and Solanum nigrum. Propachlor seemed not to be advisable due to the low efficacy against all the major broadleaf warmseason weed species in the Mediterranean areas. Considering post-emergence applications, all treatments gave quite similar results in terms of weed control, although, the mixture of terbuthylazine + bromoxynil seemed to be the best option due to bromoxinil’s higher efficacy than other foliar herbicides, such as MCPA, 2,4-D and dicamba, which can increase the efficacy of terbuthylazine alone especially under dry weather conditions. There were no significant differences in sorghum biomass between herbicide treatments, although, the more selective pre-emergence treatments showed, on average, a higher biomass yield value than the less selective post-emergence treatments. For these reasons, biomass values seemed to be more related to herbicide selectivity than to herbicide efficacy, especially in cases of scarce competitiveness of weed flora.

10

Influence of seed treatments and foliar insecticides used against Oscinella frit L. in maize on the population of thrips

63%

Beres P. K., Gorski D., Kucharczyk H.

Acta Scientiarum Polonorum. Agricultura

|

2017

|

tom 16

|

nr 1

11

The effect of water magnetized with negative magnetic field on effectiveness of selected zoocides in the control of two-spotted spider mite [Tetranychus urticae Koch]

63%

Gorski R., Wachowiak M., Tomczak M.

Journal of Plant Protection Research

|

2009

|

tom 49

|

nr 1

87-91

The results of experiments showed an effect of negative magnetic field on some chemical and physical properties of water. A slight increase in iron (Fe) content, a decrease in zinc (Zn) level and an increase in surface tension (Dc) were observed in the study. At the same time the effect of magnetically modified water on an increase in effectiveness of tested zoocides was observed in the control of the two-spotted spider mite (Tetranychus urticae Koch). A strong and statistically significant increase in the effectiveness of zoocide Talstar 100 EC was recorded after the application of one and three magnetizers, preparation Omite 30 WP after the application of two magnetizers, acaricide Magus 200 SC after the application of one and two magnetizers as well as a simultaneous use of one magnetizer and two semi-rings. Acaricide Ortus 05 SC showed a marked increase in the effectiveness in all treatments with the use of magnetically modified water.

12

Economic indicators and effectiveness of chemical control of leaf beetle larvae and diseases in spring wheat in Podkarpacie Voivodeship Poland

63%

Koniuczak Z., Siekaniec L.

Acta Scientiarum Polonorum. Agricultura

|

2017

|

tom 16

|

nr 1

13

Chemicals with a natural reference for controlling water hyacinth, Eichhornia crassipes (Mart.) Solms

63%

El-Shahawy T. A. E.-G.

Journal of Plant Protection Research

|

2015

|

tom 55

|

nr 3

Life cannot exist without water. Appropriate management of water, from the water’s source to its utilization, is necessary to sustain life. Aquatic weeds pose a serious threat to aquatic environments and related eco-environments. Short- and long-term planning to control aquatic weeds is extremely important. Water hyacinth, Eichhornia crassipes (Mart.) Solms, is one of the world’s worst pests with a bad reputation as an invasive weed. In this study we are seeking the possibility of using certain chemicals with a natural background, for controlling water hyacinth since there is a delicate balance that needs to be taken into account when using herbicides in water. Five compounds, namely: acetic acid, citric acid, formic acid, and propionic acid, in three concentrations (10, 15, and 20%) were applied (i.e. as a foliar application under wire-house conditions) and compared with the use of the herbicide glyphosate (1.8 kg ∙ ha–1). All of the five compounds performed well in the control of the water hyacinth. As expected, the efficacy increased as the concentration was increased from 10 to 20%. With formic and propionic acids, the plants died earlier than when the other acids or the herbicide glyphosate, were used. Acetic acid came after formic and propionic acids in terms of efficacy. Citric acid ranked last. Formic acid/propionic acid mixtures showed superior activity in suppressing water hyacinth growth especially at the rate of (8 : 2) at the different examined concentrations (3 or 5 or 10%) compared to the formic acid/acetic acid mixtures. Using the formic acid/propionic acid mixture (8 : 2; at 3%) in the open field, provided good control and confirmed the viability of these chemicals in the effective control of water hyacinth. Eventually, these chemical treatments could be used on water for controlling water hyacinth. In the future, these chemicals could probably replace the traditional herbicides widely used in this regard. These chemicals are perceived as environmentally benign for their rapid degradation to carbon dioxide and water. For maximum efficiency thorough coverage especially in bright sunlight is essential.

14

Activity of laminarin in control of strawberry diseases

63%

Meszka B., Bielenin A.

Phytopathologia

|

2011

|

tom 62

15

Chemical control of Megastigmus spermotrophus Wachtl (Hymenoptera, Torymidae), a seed pest of Douglas fir (Pseudotsuga menziesii F.)

63%

Szmidt A., Banaszak R.

Folia Forestalia Polonica. Series A . Forestry

|

1991

|

tom 33

16

Effects of hypovolemia on hypercapnic ventilatory response in experimental hyperthermia

63%

Zila I., Brozmanova A., Javorka M., Calkovska A., Javorka K.

Journal of Physiology and Pharmacology. Supplement

|

2007

|

tom 58

|

nr 5

17

The cotton mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) as a new menace to cotton in Egypt and its chemical control

63%

El-Zahi E.-Z. S., Aref S. A. E.-S., Korish S. K. M.

Journal of Plant Protection Research

|

2016

|

tom 56

|

nr 2

The cotton mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) is a polyphagous sap sucking insect with a wide geographical and host range causing severe losses in economically important crops. This study represents the first record of P. solenopsis as a new insect attacking cotton plants (Gossypium barbadense var. Giza 86) in Kafr El-Sheikh governorate, Egypt. The insect was noticed on cotton plants for the first time during its growing season of 2014. The mealybug specimens were collected from infested cotton plants and identified as P. solenopsis. In an attempt to control this pest, eight toxic materials viz., imidacloprid, thiamethoxam, flonicamid, emamectin-benzoate, chlorpyrifos, methomyl, deltamethrin and mineral oil (KZ-oil), belonging to different chemical groups, were tested for their influence against P. solenopsis on cotton under field conditions. Methomyl, imidacloprid, thiamethoxam and chlorpyrifos showed the highest efficacy against P. solenopsis recording 92.3 to 80.4% reduction of the insect population. Flonicamid, emamectin-benzoate and KZ-oil failed to exhibit sufficient P. solenopsis control.

18

Monitoring of codling moth [Cydia pomonella L.] in apple orchards using two methods

63%

Kot I.

Journal of Plant Protection Research

|

2010

|

tom 50

|

nr 2

220-223

The present studies were conducted in 1999-2001 in three apple orchards differing from each other by the system of cultivation, the type of agricultural treatments and chemical control of pests. Their purpose was to monitor codling moth (Cydia pomonella L.) in different types of apple orchards using pheromone traps, finding out the relation between the occurrence of moths and the sum of effective temperatures as well as determining the number of wintering caterpillars of this species with the use of bands of corrugated paper. The analysis of male flight of codling moth on the basis of pheromone traps makes it possible to state the occurrence of two generations in each studied year. The maximum population of the first generation was observed in the second or third ten days of June, while that of the second generation in the first ten days of August. The moths flight began when the sum of effective temperatures was 109.2-145.2°C, and the mean diurnal temperature was 12.3-17.2°C.

19

False spider mites (Acari: Tenuipalpidae) as pests on orchids (Phalaenopsis hybrids) in Poland

63%

Labanowski G., Soika G.

Biological Letters

|

2011

|

tom 48

|

nr 2

20

Distribution and occurrence of the neogregarine pathogen, Ophryocystis anatoliensis (Apicomplexa) in populations of Chrysomela populi L. (Coleoptera: Chrysomelidae)

63%

Yaman M.

Acta Protozoologica

|

2017

|

tom 56

|

nr 4

Ograniczanie wyników