Results 91 to 100 of about 23,780 (244)

Integrated control of slug damage in organic vegetable crops- OF 0158 [PDF]

, 2002
Slugs are important pests of a wide range of organic vegetable crops, which are high quality products, desired by consumers. Slug problems are especially acute in comparison to conventional vegetable production because use of chemical control measures is
Glen, David
core  

Molecular Phylogeny and Strain Genotyping of the Bacterial Endosymbiont Wolbachia Associated With Tuta absoluta Populations

Entomologia Experimentalis et Applicata, EarlyView.
This study was designed to understand the association between reproductive endosymbiotic bacteria and wild and laboratory‐reared Tuta absoluta populations. The majority of T. absoluta populations showed Wolbachia presence at varying levels of infection, whereas Arsenophonus, Cardinium, and Spiroplasma were not detected. Wolbachia‐positive T.
Ashok B. Hadapad, Arpit Prashar, Vikas G. C. Rana, Basavaraj S. Kalmath, Sridhar Vaddi, Ramesh S. Hire   +5 more
wiley   +1 more source

Weeds: reserves of parasitic phytonematode species populations

Advanced Agritechnologies, 2017
Цель. Анализ отечественных и зарубежных научных источников о роли сорняков как альтернативных хозяев фитонематод семейств Heteroderidae и Meloidogynidae.Результаты. Хозяевами нематод семейства Heteroderidae могут быть 350 видов сорняков из 40 семейств и 155 родов. Более половины из этих сорняков принадлежат к пяти семействам: Маревые Chenopodiaceae (37
Kalatur, K. A., Pylypenko, L. A.
openaire   +3 more sources

The Effects of LED Daylength Extensions on the Daily Activity Patterns of a Greenhouse Biological Control Agent, Aphidius matricariae

Entomologia Experimentalis et Applicata, EarlyView.
We used automated activity monitors to examine how light‐emitting diode illumination affects the daily locomotor activity of the parasitoid biocontrol agent Aphidius matricariae. We compared 4‐ to 20 h broad‐spectrum white (BSW) photoperiods, and 12 h BSW photoperiods extended with an additional 6 h of red‐blue, red‐green‐blue, or BSW light, or no ...
Jessica L. Fraser, Paul K. Abram, Martine Dorais   +2 more
wiley   +1 more source

Chemical Control of the Field Dodder (Cuscuta campestris) in New-Seeded Alfalfa (Medicago sativa)

Agronomy
Field dodder (Cuscuta campestris yuncker) is an important parasitic weed that has negative impacts on the growth and yield of alfalfa (Medicago sativa L.). Effective control of field dodder in alfalfa crops is necessary to reduce yield losses.
Fariba Meighani, Ebrahim Mamnoei, Sepideh Hatami, Elham Samadi-Kalkhoran, Behrooz Khalil-Tahmasebi, Nicholas Emmanuel Korres, Ali Ahsan Bajwa   +6 more
doaj   +1 more source

Farmers and Agricultural Extension Officers Perception of Striga gesnerioides (Willd.) Vatke Parasitism on Cowpea in the Upper East Region of Ghana

Advances in Agriculture, 2018
Cowpea [Vigna unguiculata (L.) Walp] is an important food security crop in Sub-Saharan Africa. However, cowpea production in some parts of this region is constrained by Striga gesnerioides (Willd.) Vatke infestation resulting in yield losses.
Peter Haruna, Aaron T. Asare, Elvis Asare-Bediako, Francis Kusi   +3 more
doaj   +1 more source

\u3cem\u3eCuscuta Jepsonii\u3c/em\u3e (Convolvulaceae): An Invasive Weed or an Extinct Endemic? [PDF]

, 2009
Despite their ecological significance, parasitic plants face more conservation challenges than do autotrophic plants. This is especially true for the groups that include weedy or invasive species such as Cuscuta.
Costea, Mihai, Stefanović, Saša
core   +1 more source

Spectral Characterization of the Life Stages and Physiological Responses of Diatraea saccharalis Fabricius (Lepidoptera: Crambidae) Larvae Parasitized by Cotesia flavipes Cameron (Hymenoptera: Braconidae)

Entomologia Experimentalis et Applicata, EarlyView.
Hyperspectral proximal sensing was used to characterize the life stages and physiological responses of Diatraea saccharalis and to detect parasitism by Cotesia flavipes. Distinct spectral signatures differentiated eggs, larval instars, pupae, and adults, as well as live, dead, and parasitized larvae.
Souradji I. Bachirou, David L. Rosalen, Sergio A. De Bortoli, Pedro G. Peixoto   +3 more
wiley   +1 more source

Pectin Remodeling and Involvement of AtPME3 in the Parasitic Plant–Plant Interaction, Phelipanche ramosa–Arabidospis thaliana

Plants
Phelipanche ramosa is a root parasitic plant fully dependent on host plants for nutrition and development. Upon germination, the parasitic seedling develops inside the infected roots a specific organ, the haustorium, thanks to the cell wall-degrading ...
Cyril Grandjean, Christophe Veronesi, Christine Rusterucci, Charlotte Gautier, Yannis Maillot, Maïté Leschevin, Françoise Fournet, Jan Drouaud, Paulo Marcelo, Luciane Zabijak, Philippe Delavault, Philippe Simier, Sophie Bouton, Karine Pageau   +13 more
doaj   +1 more source

The allelopathic influence of Anethum graveolens seed powder in controlling Orobanche crenata infesting Vicia faba and its effect on the crop growth and yield [PDF]

Journal of Crop Protection
Two pot experiments were performed in the wire greenhouse of the National Research Centre, Dokki, Giza, Egypt during two successive winter seasons of 2020/2021 and 2021/2022 to study the allelopathic efficiency of Anethum graveolens seed powder (AGSP) in
Nadia K. Messiha, Salah A. A. Ahmed, Rafat R. El-Masry, Mahmoud A. T. El-Dabaa   +3 more
doaj   +1 more source