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Temporal changes in the population structure of chironomid species colonising rice-fields in California (where the larvae damage the germinating seeds...

In a further study on the distribution of cereal aphids and their predators and parasites in southern England [see RAE/A 62, 500, 3133], the distribut...

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

A passive haemagglutination inhibition (PHI) test for the identification of stomach contents of invertebrate predators is described. When used in a sy...

In southern England, 25 sites of indigenous juniper (Juniperus communis) visited in 1968-69 were considered as islands, since they tended to consist o...

The growth of perennial ryegrass (a New Zealand variety of Lolium perenne) was measured under glasshouse conditions in New South Wales, in turfs in po...

The adult life-span and the factors affecting egg production in Pieris rapae (L.) (especially age, temperature and solar radiation) were investigated ...

A mathematical model is described that was developed to relate observed egg sterility in insects to other parameters of mating and reproduction, for u...

Laboratory and field studies were carried out for 6 years on the ecology of Aedes cantans (Mg.) in southern England. Females oviposited in the leaf li...

Seasonal changes in the photosynthesis of tea were measured with a 14C technique during two years in Malawi. Photosynthesis did not decrease at the be...