Results 91 to 100 of about 219,394 (199)

Food security under attack: Africa's struggle against parasitic weeds [PDF]

, 2017
Parasitic weeds invade around 1.34 million hectares of rainfed rice areas in Africa causing damages estimated at USD 200 ...
Zwart, Sander J., Zwart, S.J., Bastiaans, Lammert, Demont, Matty, Bastiaans, L., Rodenburg, Jonne   +5 more
core  

Natural Parasitism of Nezara viridula (Linnaeus) (Hemiptera: Pentatomidae) by Trichopoda pictipennis Bigot (Diptera: Tachinidae) in an Organic Strawberry Field in Germany

Entomologia Experimentalis et Applicata, EarlyView.
Natural parasitism of the invasive southern green stinkbug was recorded in an organic strawberry cropping system in southwestern Germany. The tachinid fly Trichopoda pictipennis shows successful establishment and field activity, indicating ongoing range expansion.
Sophie Wenz, Olaf Zimmermann, Annette Reineke   +2 more
wiley   +1 more source

Can greater uncertainty hasten investment?

, 2003
This paper examines irreversible investment in a project with uncertain returns, when there is an advantage to being the first to invest and externalities to investing when others also do so.
Weeds, Helen, Mason, Robin
core   +1 more source

Plant extracts to manage the parasitic weed branched broomrape (Phelipanche ramosa)

Phytopathologia Mediterranea
Some weeds have parasitic lifestyles, causing severe problems in agriculture. These plants include Phelipanche ramosa (L.) Pomel (branched broomrape). Greenhouse and nursery trials were carried out to assess control of P.
Ezzudeen EISAWI, Generosa CALABRESE, Angela BOARI, Maurizio VURRO   +3 more
doaj   +1 more source

Advances in Parasitic Weeds Research

, 2018
Parasitic weeds are severe constraint to agriculture and major crop production, and the efficacy of available means to control them is minimal. Control strategies have centred around agronomic practices, resistant varieties and the use of herbicides ...
Hanan Eizenberg, Maurizio Vurro, Mónica Fernández-Aparicio, Diego Rubiales   +3 more
core   +1 more source

The Importance of the Larval Parasitoid Actia interrupta (Diptera: Tachinidae) in Low Density Eastern Spruce Budworm Populations

Entomologia Experimentalis et Applicata, EarlyView.
Actia interrupta is an important larval tachinid parasitoid during low‐density populations of the eastern spruce budworm. In the late 1980s during the outbreak collapse, Meteorus trachynotus was initially the most important species, but was replaced by A. interrupta. Host patch size and density had no impact on the parasitism rates by A.
Véronique Martel, Jacques Régnière, Jean‐Claude Thireau   +2 more
wiley   +1 more source

Probing strigolactone perception mechanisms with rationally designed small-molecule agonists stimulating germination of root parasitic weeds. [PDF]

Nat Commun, 2022
Wang D, Pang Z, Yu H, Thiombiano B, Walmsley A, Yu S, Zhang Y, Wei T, Liang L, Wang J, Wen X, Bouwmeester HJ, Yao R, Xi Z.   +13 more
europepmc   +1 more source

Rearing Istocheta aldrichi (Diptera: Tachinidae) From Field‐Collected Japanese Beetles (Popillia japonica): 1. Methods to Improve Insect Collection and Parasitoid Pupariation

Entomologia Experimentalis et Applicata, EarlyView.
We describe methods for collecting and rearing the tachinid parasitoid Istocheta aldrichi from parasitized Japanese beetle adults. Hosts can be collected by hand and reared in the laboratory, or by using modified trap containers with added plant material and substrate to provide suitable conditions for I.
Simon Legault, Josée Doyon, Paul K. Abram, Jacques Brodeur   +3 more
wiley   +1 more source

Incorporating knowledge of allelopathic interactions can improve productivity and sustainability of crop rotations in the semi-arid tropics

Journal of Agriculture and Food Research
Allelopathy in rainfed crop production systems can be a boon or bane for smallholder farmers depending on their crop choices in intercrops, sequences, and rotations.
Nageswara Rao Vajja, Holger Meinke, Martin J. Kropff, Niels P. Anten, Anthony M. Whitbread, Uttam Kumar, David Parsons   +6 more
doaj   +1 more source

The Influence of the Plant Growth Regulator Maleic Hydrazide on Egyptian Broomrape Early Developmental Stages and Its Control Efficacy in Tomato under Greenhouse and Field Conditions

Frontiers in Plant Science, 2017
Broomrapes (Phelipanche spp. and Orobanche spp.) are holoparasitic plants that cause tremendous losses of agricultural crops worldwide. Broomrape control is extremely difficult and only amino acid biosynthesis-inhibiting herbicides present an acceptable ...
Ariel Venezian, Evgenia Dor, Guy Achdari, Dina Plakhine, Evgeny Smirnov, Joseph Hershenhorn   +5 more
doaj   +1 more source