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Phratora vulgatissima is the most serious pest of willow grown as short-rotation coppice in Britain. The effects of genetically diverse plantations of...
Read moreThe following is virtually the author's summary. Dipterous eggs laid in the soil round the bases of plants in market-garden crops of cabbage and cauli...
Read moreThe following is based largely on the author's summary. A study was made in eastern England in 1969-70 on aphidophagous Syrphids and Syrphid predation...
Read moreThe following is virtually the author's summary. Studies were carried out in 1958-62 on some of the factors that affect the formation of bands of hopp...
Read moreThe following is virtually the author's summary of this account of observations in southern England. Weather at the critical times of oviposition, lar...
Read moreAs part of a research project on the population dynamics of a polyphagous noctuid pest, Helicoverpa armigera, on crops commonly grown in small-scale a...
Read moreThe following is virtually the author's summary. Observations were made on the biology and ecology of Leptocorisa oratoria (F.) in Sarawak, mainly at ...
Read moreThe adult life-span and the factors affecting egg production in Pieris rapae (L.) (especially age, temperature and solar radiation) were investigated ...
Read moreThe author has found that the stages in the ovarian cycle of female of Hylemya (Erioischia) brassicae (Bch.) can be numbered in a similar way to that ...
Read moreThe populations of Operophtera brumata (L.) on 8 cider apple trees of 4 cultivars were monitored from October 1972 until May 1975 in Western England. ...
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