There is little evidence for these pheromones. Indeed, under natural conditions the Nasonov pheromone is effective as an attractant in several different behavioural contexts (i.e. when clustering, at ... There is little evidence for these pheromones. Indeed, under natural conditions the Nasonov pheromone is effective as an attractant in several...

With the top pheromones, they could be used as temporary measures until synthetic brood and queen pheromones are available. On most crops honeybees collecting pollen are more effective as pollinators... With the top pheromones, they could be used as temporary measures until synthetic brood and queen pheromones are available. On...

Today in the world the hot topic discussed by all is global warming, rising temperatures, irregular rainfall and the dire influence seen the world over due to seasonal changes. No doubt the entire world is within its periphery yet we do not know why no country whether it is developed...

Sex pheromones in the reproductive isolation of lepidopterous species matter. Throughout millions of metamorphoses, evolutionary processes in the Lepidoptera have resulted in many differences in morph... Sex pheromones in the reproductive isolation of lepidopterous species matter. Throughout millions of metamorphoses, evolutionary processes in the Lepidoptera have resulted in many differences...

The maximum distance over which a ‘receiver’ insect can orient to pheromone emitted by a ‘sender’ insect depends upon many factors including: 1) pheromone emission rate of the ... The maximum distance over which a ‘receiver’ insect can orient to pheromone emitted by a ‘sender’ insect depends upon many factors...

Although the use of different top pheromone attractants is the most obvious method of achieving reproductive isolation, many species apparently employ the same attractant system. In these cases rate o... Although the use of different top pheromone attractants is the most obvious method of achieving reproductive isolation, many species apparently...

It is obvious that many species could achieve reproductive isolation because they employ different pheromone compounds. In the Tortricidae (table 6.1), structural vuriution, as known to date, is obtai... It is obvious that many species could achieve reproductive isolation because they employ different pheromone compounds. In the Tortricidae (table 6.1),...

There is little more evidence for specificity in the Danaiinae. Chemicals are different for each of the species identified (g. 7.1), although only one, the ketone, has been shown to have biological a... There is little more evidence for specificity in the Danaiinae. Chemicals are different for each of the...

The evidence is increasing in support of Wright’s (1964) prediction that most insects use more than one attractant chemical. Pressures from sympatric upeciu. which utilize a common attractant, c... The evidence is increasing in support of Wright’s (1964) prediction that most insects use more than one attractant chemical. Pressures from...

Exclusive mating cycles also appear to function in maintaining separation of two  closely related lymantriids, the gypsy moth (Porthetria dispar) and the nun moth (Lymantria morzacha (L.)), both of wh... Exclusive mating cycles also appear to function in maintaining separation of two  closely related lymantriids, the gypsy moth (Porthetria dispar)...