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The seasonal phenology of A. glycines was studied in soyabeans at 15 sites on Sumatra. A. glycines densities peaked in the vegetative plant stage and ...

The effect of cover (intersown clover or lettuce or artificial material) on egg populations of Delia brassicae (Wied.) on cabbage crops was investigat...

Invasive species and river infrastructure are major threats to freshwater biodiversity. These stressors are commonly considered in isolation, yet the ...

Bathycoelia thalassina (H.-S.) occurs in all cacao-growing regions of Ghana, and in large numbers where Amazon varieties and hybrid selections are cul...

Estimated levels of larval parasitism of Mythimna separata, a pest of pasture and cereal crops in New Zealand, before and after the introduction of th...

The density of Pteronia pallens (Asteraceae), a shrub toxic to sheep, increased in Karoo rangeland at the expense of a congeneric palatable shrub, P. ...

The colonisation of collard plants by herbivorous insects was studied in New York in stands of 1, 10 and 100 plants. The stands were cultivated in som...

The following is virtually the author's summary. Observations were made on the biology and ecology of Leptocorisa oratoria (F.) in Sarawak, mainly at ...

Two interrelated experiments at Basel on the effect of root herbivory by the moth Agapeta zoegana on C. maculosa, under various competitive environmen...

Following the intentional introduction of the exotic biological control organisms Puccinia chondrillina (skeletonweed rust), Cystiphora schmidti (skel...