When first instar nymphs and adults of the grain aphid Sitobion avenae
(Fabricius)(Hemiptera: Aphidiae) were maintained in long‐term cultures (> 6 months) at 20° …

First instar nymphs and adults of the grain aphid Sirobion auenae that had been reared at
10° C and 20° C over a number of generations, were cooled to‐5° C and‐10° C for 1 h and 6 …

The following are substantially the author's summaries of these accounts of laboratory
studies in England. The fecundity of apterous virginoparae of M.(A.) pisum was positively …

The effects of brief exposures to sub‐zero temperatures (cold‐pulses) on wing development
were investigated in an anholocyclic clone of the grain aphid Sitobion avenae. A cold‐pulse …

In contrast to previous studies of rapid cold-hardening (RCH), which have investigated the
responses of insects maintained undersummer conditions'(20° to 25° C), this study focuses …

1. Summer generations of the Arctic aphid Acyrthosiphon brevicorne experience subzero
temperatures that would be lethal or cause sub-lethal effects in both summer and winter …

1. An anholocyclic clone of the aphid Rhopalosiphum padi was reared on leaves of barley
seedlings at 20⚬ C in a 16: 8 LD photoperiod. First instar nymphs and newly moulted, pre …

The survival of aphids exposed to low temperatures is strongly influenced by their ability to
move within and between plants and to survive exposure to potentially lethal low …

Heat responses can vary ontogenetically in many insects with complex life cycles, reflecting
differences in thermal environments they experience. Such variation has rarely been …

The cold hardiness of three aphid species, Acyrthosiphon pisum, Aulacorthum solani and
Megoura crassicauda, was investigated using the active stages of holocyclic and …