Results 201 to 210 of about 63,188 (307)

Self‐help and Volunteerism in Tanzania in the 1960s: Voluntary Labour, Nation Building and Constructing Modernity

open access: yesDevelopment and Change, EarlyView.
ABSTRACT The United Nations has declared 2026 the International Year of Volunteers for Sustainable Development. Against that backdrop, this article examines the experience of volunteerism, and specifically self‐help voluntary labour in Tanzania in the early colonial period, to explore the place of volunteerism in the construction of the post‐colonial ...
Michael Jennings
wiley   +1 more source

Forage Plant Host and Early Feeding Choices Affect Spodoptera litura Feeding, Development and Egg‐Laying

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
We assessed Spodoptera litura (Lepidoptera: Noctuidae) performance on five common pasture plant species. Larvae consumed more dock, plantain and chicory per day than red or white clover, but with lower conversion efficiencies. Feeding on red clover reduced weights and egg laying, and lengthened development times compared with plantain.
J. G. Jensen   +4 more
wiley   +1 more source

The Effects of Sowing Date and Variety on Yield and Yield Components of Teff under Irrigation in Northwestern Amhara, Ethiopia

open access: yesBlue Nile Journal of Agricultural Research
Teff cultivation under irrigation is emerging as a new practice in Amhara region, Ethiopia. Thus, teff production under an irrigation environment necessitates optimization of agronomic practices, including the sowing dates.
Agegnehu Shibabaw   +5 more
doaj  

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

open access: yesEntomologia 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   +2 more
wiley   +1 more source

Do aphid endosymbiotic bacteria influence parasitoid searching behaviour through changes in aphid honeydew production?

open access: yesEcological Entomology, EarlyView.
Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda   +5 more
wiley   +1 more source

Influence of sowing dates and weed management practices on weed dynamics, productivity and profitability of direct seeded rice. [PDF]

open access: yesSci Rep
Mir MS   +14 more
europepmc   +1 more source

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