Posted on: 02 March, 2017
Author: Alexander P
Bees love to use the top pheromones to increase pollination. Furthermore, bees are able to distinguish between the heads alone of bees of their own colony and heads of bees of alien colonies; they pre... Bees love to use the top pheromones to increase pollination. Furthermore, bees are able to distinguish between the heads alone of bees of their own colony and heads of bees of alien colonies; they prefer to beg food from the former and may even attack the latter without pheromone attraction. (Free, 1956). Even colonies in the same location make different use of the local ora,...
Posted on: 02 March, 2017
Author: Alexander P
This article is about the top pheromones for insect control. Attempts have been made to attract drones to alkenoic acids closely related to 9-ODA but without any pheromone success (Blum et al. , 1971)... This article is about the top pheromones for insect control. Attempts have been made to attract drones to alkenoic acids closely related to 9-ODA but without any pheromone success (Blum et al. , 1971), indicating that the honeybee sex attractant has a high structural specicity which most effectively eliminates attempted matings with species other than honeybees. Howev- er, the mandibular glands of queens of all honeybee...
Posted on: 02 March, 2017
Author: Alexander P
This article is about the pheromones found in insects. Simultaneous counts are made of foragers entering and leaving a pair of hives. The odour of the top pheromone component is dispensed just outside... This article is about the pheromones found in insects. Simultaneous counts are made of foragers entering and leaving a pair of hives. The odour of the top pheromone component is dispensed just outside the entrance of one hive but not the other, and the counts are continued (Free et al., 1987c). Most components discourage foraging activity, especially isopentyl acetate, n-butyl acetate, n-octyl acetate, octanoic acid, isopentyl alcohol...
Posted on: 02 March, 2017
Author: Alexander P
Pheromones are produced by specialized glands in insects of one sex and elicit a behavioral response in the opposite sex. In most cases, the producing sex does not release the pheromone continuously t... Pheromones are produced by specialized glands in insects of one sex and elicit a behavioral response in the opposite sex. In most cases, the producing sex does not release the pheromone continuously throughout its adult life. Nor does the responding sex typically display a constant degree of responsiveness to the pheromone. Instead, certain physiological factors within the insects themselves and certain properties of the environment in which...
Posted on: 02 March, 2017
Author: Alexander P
Perhaps the top pheromone odour will prove to be a composite of inherited odour produced by various exocrine glands and the adsorbed pheromone odour from the hive atmosphere, much of which must derive... Perhaps the top pheromone odour will prove to be a composite of inherited odour produced by various exocrine glands and the adsorbed pheromone odour from the hive atmosphere, much of which must derive from the bees themselves. If so, bees must continuously re—learn and re-adapt to their colony odour as it changes. It would be expected that larvae, pupae and newly emerged bees would also adsorb odour...
Posted on: 02 March, 2017
Author: Radhika Vyas
Take a moment and think of the room where a considerable time is spent to prepare delicious and healthy food for self and family. It is the place where we cook and talk about life. We do a lot more than just cooking, and so it needs a good ambiance with the perfect contrast between wall tiles and furniture. A vibrant looking kitchen is always inviting and gives a breath of fresh thoughts. The vital role played here is the kitchen wall tiles. You can make your kitchen look lively and happening by adding attractive colorful wall tiles. There are...
Posted on: 02 March, 2017
Author: Alexander P
Many investigators routinely anesthetize insects at one time or another during their adult life to facilitate differentiation of sexes, for transfer to fresh containers, or for various surgical operat... Many investigators routinely anesthetize insects at one time or another during their adult life to facilitate differentiation of sexes, for transfer to fresh containers, or for various surgical operations. The possible effect of such anesthetization on pheromone behavior is rarely questioned. However, Brady and Smithwick (1968) found that treatment of female Indian meal moths with nitrogen, carbon dioxide, or ether vapors suppressed sex pheromone release for up to nine hours. Holding...
Posted on: 02 March, 2017
Author: Alexander P
It is well known that blowing smoke into a colony’s hive or nest helps to diminish aggression. This is partly because it induces many of the worker bees to ingest food from the storage cells whi... It is well known that blowing smoke into a colony’s hive or nest helps to diminish aggression. This is partly because it induces many of the worker bees to ingest food from the storage cells which reduces the likelihood that they will sting (Newton 1968, 1971; Free, 1968b). However, only about half the bees engorge when their colony is smoked and aggression begins to...
Posted on: 02 March, 2017
Author: Alexander P
Let’s talk about top pheromones in insects. The possible extent to which colony pheromone odour normally has a genetic basis needs reinvestigation. The colonies used should be headed by queens t... Let’s talk about top pheromones in insects. The possible extent to which colony pheromone odour normally has a genetic basis needs reinvestigation. The colonies used should be headed by queens that have been articially inseminated so all the offspring within a colony are of identical parentage. If top pheromone odour does prove to be genetically determined individual bees must learn the odours of their half-sisters as well as their...
Posted on: 02 March, 2017
Author: george hopson
I lately bought a brand new home, simplest to discover that I probable were given in over my head in terms of the belongings maintenance. I essentially positioned myself into a situation wherein I turned into going to need to shop for a few energy gear that I had never used before and a hedge trimmer was one of the tools that I was going to want. Once I started out searching round for an amazing hedge trimmer, I found out that I turned into going to should make a few choices, here's what I discovered about the different sorts....