搜索结果: 1-15 共查到“植物保护学 infestation”相关记录17条 . 查询时间(0.075 秒)
Impact of potato psyllid density and timing of infestation on Zebra chip disease expression in potato plants
Bactericerca cockerelli carbohydrates reducing sugars glucose fructose sucrose starch
2016/9/2
The impact of vector density and timing of infestation on potato were investigated. Healthy potato plants at different growth stages (4, 5, and 7 weeks after germination) were exposed separately to fo...
Comparative susceptibility of different legume seeds to infestation by cowpea bruchid Callosobruchus maculatus (F.) (Coleoptera: Chrysomelidae)
C. maculatus legume seeds oviposition development susceptibility host selection weight loss
2015/3/3
The comparative susceptibility of seeds of ten legumes to infestation by Callosobruchus maculatus was studied in choice and no-choice experiments. Cowpea, garden pea and pigeon pea seeds recorded the ...
Correlation between Black Point Symptoms and Fungal Infestation and Seedling Viability of Wheat Kernels
wheat kernels black point Fusarium
2015/3/2
The level of occurrence of black point, the spectrum of fungal species and damage to wheat seedling vigour
associated with it were assessed during 2003 and 2004 in the Slovak Republic. The incidence...
Infestation of poppy cultures with the poppy stem gall wasp (Timaspis papaveris) Cynipidae: Hymenoptera
Timaspis papaveris Kiefer poppy culture damage mortality crop infestation parasitisation
2015/2/2
The mortality of pupae in stems lying on the ground during hibernation was 51.7% in 2003. The emergence of adults in 2003 and 2004 was monitored from late April to early July by photoeclectors placed ...
Evidence and symptoms of pasta infestation by Sitophilus oryzae (Curculionidae; Coleoptera) in the Czech Republic
Sitophilus oryzae pasta symptoms of infestation photo-documentation
2015/1/30
Heavy infestation of pasta by the internally feeding pest Sitophilus oryzae (Coleoptera: Curculionidae) was recorded for the first time under field conditions in the Czech Republic. Symptoms of hidden...
Weight losses of wheat grain caused by psocid infestation (Liposcelis bostrychophila: Liposcelididae: Psocoptera)
Liposcelis bostrychophila Psocoptera stored grain weight losses
2015/1/28
ocids are commonly found to be a persistent pest in structures of grain stores. Grain residues are potential pest reservoirs that serve as sources of grain re-infestation. Weight losses caused by psoc...
Nematode infestation and N-effect of legumes on soil and crop yelds in legume-sorghum rotations
Legume Nematode Nitrogen Crop Rotation Sorghum
2013/3/4
The effects of cowpea (Vignaunguiculata) and-groundnut (Arachis hypogea) on succeeding sorghum yields, soil mineral N and nematode infestationwere studied during five cropping seasons (2000 to 2004) i...
Effect of green manure legume - maize rotation on maize grain yield and weed infestation levels
Green manure legume maize rotation weed infestation
2011/1/10
The use of green manure legumes (GLM) as cover crops in rotation with maize has the potential to enhance maize yields. The objectives of this study were to determine the effect of GML - maize rotation...
Infestation of Thrips in Semi-forcing Green Asparagus (Asparagus officinalis L.) Cultivation and the Effects of Near Ultraviolet Ray-absorbing Film
invasion control mother fern culture onion thrips pesticide reduction
2009/7/7
This study was conducted to investigate infestation of thrips in mother fern green asparagus (Asparagus officinalis L.) cultivation and the effects of near ultraviolet ray-absorbing (UVA) film. The mo...
CORRELATIONS BETWEEN WEED INFESTATION AND POTATO TUBER YIELD AND ITS STRUCTURE DEPENDING ON THE FERTILIZATION SYSTEMS AND THE AGRONOMICAL CATEGORY OF SOIL
tuber fractions correlations fertilization soil type weed infestation potato
2009/3/31
The field research was carried out in the years 2000-2003 at the Experimental Farm of Lublin Agricultural University, located in Bezek near Chełm (51o19’ N; 23o26’ E). The purpose of this work wa...
Mamestra dissimilis Knoch. POTENTIAL TO CONTROL WEED INFESTATION WITH MOSSY SORREL（Rumex confertus Willd.）
Mamestra dissimilis Knoch dog’s tooth Rumex confertus Willd mossy sorrel feeding
2009/3/31
Field and laboratory research were conducted to determine the potential of Mamestra dissimilis Knoch., Lepidoptera: Noctuidae to control mossy sorrel (Rumex confertus Willd.). In the natural sorrel ha...
EFFECT OF HERBICIDE APPLICATION METHOD ON WEED INFESTATION AND GRAIN YIELD OF WINTER WHEAT
wheat weed control herbicide mixtures Apera spica-venti
2009/3/30
Three-year field experiment (1999-2001) was conducted to determine the effectiveness of Treflan 480 EC herbicide (trifluraline) for common windgrass (Apera spica-venti) control applied directly after ...
Potential application of Hyptis spicigera for biological control of Striga hermonthica infestation
Striga Incidence seeding rates cropping systems maize yield
2009/3/4
Food situation has remained insecure and unpredictable in sub-Saharan Africa leading to high levels of cyclic famine and poverty. This has been exacerbated by perennial pest problems, which cause su...
The effect of conservation primary and zero tillage on soil bulk density, water content, sugar beet growth and weed infestation
conservation primary zero tillage soil bulk density water content sugar beet growth weed infestation
2010/1/18
The effect of conservation primary and zero tillage on soil bulk density, water content, sugar beet growth and weed infestation.
Effect of Bruchid Beetles (Burchidius Arabicus Decelle) Infestation on the Germination of Acacia tortilis (Forssk.) Hayne) Seeds
Bruchid beetles germination scarification Acacia tortilis temparature
2008/12/30
The role of bruchid beetle infestation on seed germination of Acacia tortilis (Forssk.) Hayne) Mimosaceae under different incubation temperatures and degrees of scarification was studied under control...