Has anybody counted honeybees in a large sampling area of a large Raspberry (Rubus ideaus) crop relative to temperature over a number of seasons? I am aware of papers that give details of honeybee counts relative to time of day opn a variety of crops. Several of these give linear regression analysis of foraging relative to temperature that indicates a constant increase in foraging between 10 and 30 C but most of these are based on counts within a limited area over a limited time. Some work that I undertook over 5 years seems to indicate that honeybee numbers increase to about 22 C (ish) then fall off. There also seems to be multiple modes. A linear regression analysis of this data produces a broadly similar slope to other workers mentioned above but with a poor correlation coefficient. As a beekeeper I can come up with a number of explanations of my findings but would like to confer with anyone who has taken counts in a large sampling area of a large crop, any crop because one of the answers could lie here. Keith >>> Keith JM Hooker <<< >>> Technology Management Ltd <<< >>> 1 Sunray Avenue <<< >>> WHITSTABLE <<< >>> Kent CT5 4ED <<< >>> UK <<<