Results 41 to 50 of about 23,978 (262)

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

open access: yes, 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  

Entomological and functional role of floral strips in an organic apple orchard: Hymenopteran parasitoids as a case study [PDF]

open access: yes, 2012
Habitat manipulation techniques improve the availability of resources required by natural enemies to increase their effectiveness. This study focused on the effects of floral strips on Hymenopteran parasitoid presence.
Dib, Hazem   +2 more
core   +1 more source

Lectotypifications and taxonomic changes in the holoparasitic Orobanchaceae

open access: yesNordic Journal of Botany, EarlyView.
Based on further extensive studies of specimens in various herbaria, lectotypes are designated for many taxa of holoparasitic Orobanchaceae. In particular, 47 names in the genera Boschniakia (incl. Xylanche), Cistanche, Orobanche, Phelipanche and Phelypaea are lectotypified.
Holger Uhlich   +5 more
wiley   +1 more source

A Survey of Kentucky High Tunnel Vegetable Growers: Production Challenges Faced and Strategies Used To Overcome Them

open access: yesHortTechnology
Kentucky vegetable growers use high tunnels (HTs) to increase profitability and resilience. Increased disease, pest, and weed pressure over time threaten these benefits.
Margarita Velandia   +4 more
doaj   +1 more source

Using a social‐ecological macrosystems framework to understand how human activities alter ecological synchrony

open access: yesPeople and Nature, EarlyView.
Abstract Different aspects of ecological systems, biotic or abiotic, often fluctuate in coordinated patterns over space and time. Such high concordance between ecological processes is often referred to as ecological synchrony. Human activities, including and beyond climate change, have the potential to alter ecological synchrony by disrupting or ...
Yiluan Song   +9 more
wiley   +1 more source

Irrigation Scheduling and Weed Management: A Sustainable Approach for Managing Broomrape and Other Weeds in Tomato Crop

open access: yesHorticulturae, 2022
Broomrape (Orobanche cernua L.) is an obligate root parasitic weed that significantly reduces the qualitative and yield attributes of tomatoes globally.
Muhammad Fawad   +7 more
doaj   +1 more source

The Biology of Canadian Weeds. 133. \u3cem\u3eCuscuta campestris\u3c/em\u3e Yuncker, \u3cem\u3eC. gronovii\u3c/em\u3e Willd. ex Schult., \u3cem\u3eC. umbrosa\u3c/em\u3e Beyr. ex Hook., \u3cem\u3eC. epithymum\u3c/em\u3e (L.) L. and \u3cem\u3eC. epilinum\u3c/em\u3e Weihe [PDF]

open access: yes, 2006
Cuscuta spp. (dodders) are rootless, holoparasitic herbs with filiform stems attached to the host by numerous haustoria. In Canada, Cuscuta gronovii is the most common native species of the genus followed by Cuscuta campestris and C. umbrosa.
Costea, Mihai, Tardif, François J.
core   +1 more source

Effect of Fusarium and Rhizoctonia isolates on the pre-attachment stage of Phelipanche aegyptiaca [PDF]

open access: yesJournal of Plant Protection Research
Phelipanche aegyptiaca is an obligate root-parasitic plant of the Orobanchaceae family that comprises the most threatening weed for major crops in regions with a Mediterranean climate zone, as well as in Asia, southern and Eastern Europe.
Esra Cignitas   +2 more
doaj   +1 more source

Geographical distribution and aspects of the ecology of the hemiparasitic angiosperm Striga asiatica (L) Kuntze: A herbarium study [PDF]

open access: yes, 1997
Striga asiatica (Scrophulariaceae) is an obligate root hemiparasite of mainly C-4 grasses (including cereals). It is the most widespread of the 42 Striga species occurring in many semi-tropical, semi-arid regions of mainly the Old World.
Cochrane, V., Press, M.C.
core  

Conservation status of species used in the UK herbal medicine industry

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Given the ongoing biodiversity crisis, sustainable use and management of medicinal plants is critical. We assessed the conservation status, threats and conservation actions of 298 species sold by UK suppliers to medical herbalists. We found that most species used are unevaluated, representing a gap in conservation knowledge, and of those with ...
Isabella Flowers   +2 more
wiley   +1 more source

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