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Two plots, each of 240 broom (Sarothamnus scoparius) seedlings were planted in England in March 1966. For 11 years, one plot was sprayed 1-3 times a y...

The application of dimethoate to winter wheat in southern England to control cereal aphids (mainly Sitobion avenae (F.)) caused changes in the numbers...

A simplified method for the estimation of the intrinsic rate of natural increase (rm) of aphids is proposed. Having determined the prereproductive tim...

Crow damage to 'couped' or trapped ewes in Argyll, Scotland caused only slight economic damage. Crow predation on lambs and other causes of lamb morta...

Hooded crows (Corvus cornix) in Argyll, Scotland could be divided into 2 groups, one of which held territories in which they bred in summer and the re...

Modern porometers measure the rate at which water vapour diffuses out of leaves. The stomatal resistance can be deduced directly from this measurement...

Accessions of C. virginianum were tested for response to frosting in the field and in controlled environments. Accessions differed in their ability to...

The device, which does not require attachment to the shoot apex, includes a light transmitter/receiver system that can be continually repositioned ove...

Variants examined included the rate of input of water to the canopy, the potential evaporation rate from the canopy, the storage capacity of the canop...

Phytophagous arthropods on Juniperus are listed together with their parasitic and predaceous arthropods [see FA 34, 6805]. Also listed are general pre...