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Seeds of 16 arable weed spp. collected in 1977 were sown outdoors in boxes or pots at various depths. Most grass spp. emerged in the autumn, while man...

Achenes of 7 species of Carduus, Cirsium and Onopordum were collected in August-September and mixed with the top 2.5 or 7.5 cm of soil which was then ...

Agrostemma githago and spring wheat cv. Sicco were sown in monocultures and 1:1 mixtures at overall densities of 16, 40, 120, 400 and 1200 plants/m² i...

The upper limit to the number of mice was estimated at 36 mice/ha when 860 000 Douglas fir seeds/ha were taken. Additional seeds did not result in fur...

Reports the effects of seasonal grazing by sheep on young Juniperus communis for seven years from 1966 on IBP grazing plots at Aston Rowant national n...

Wheat cv. Concorde, Chenopodium album, Agropyron repens [Elymus repens] and Spergula arvensis were grown in pure stands and in mixtures of weeds with ...

Random soil samples were used to estimate the number and weight of each species of enchytraeid and lumbricid at fourteen long-established experimental...

An anholocyclic clone of Rhopalosiphum padi was reared on leaves of barley seedlings at 20°C in LD 16:8. First-instar nymphs and newly moulted, pre-re...

Factors responsible for mortality and survival after autumn and spring burns were studied for B. attenuata, B. leptophylla, B. menziesii and B. priono...

Linyphiid spiders are important predators of pests in agricultural ecosystems. Their ability to disperse aeronautically is a pre-adaptation to ephemer...