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: 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....
Posted on: 02 March, 2017
Author: Kamal Kumar Shukla
New York has always been a very happening city of the world. The city has wonderful natural beauty. Located in the heart of Hudson River the city has always attracted huge tourists over the year. The ... New York has always been a very happening city of the world. The city has wonderful natural beauty. Located in the heart of Hudson River the city has always attracted huge tourists over the year. The city is known as a magical city for its natural beauty. Landscapes of the city The geographical feature of the city is quite unique. It consists of...
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
Let us discuss male pheromones. Wright (1958) proposed a mechanism by which a ying insect could steer toward a distant pheromone chemical source without the use of anemotaxis. His hypothesis is based... Let us discuss male pheromones. Wright (1958) proposed a mechanism by which a ying insect could steer toward a distant pheromone chemical source without the use of anemotaxis. His hypothesis is based upon observations of the physical nature of a chemical trail. Wright noted that the spaces between the odorous filaments of the trail are positively correlated with the distances from both the odor source and the longitudinal...
Posted on: 02 March, 2017
Author: Alexander P
To erradicate insects, one must understand the proper abatement program with pheromones. This article will discuss how to best accomplish that. Unfortunately, few experiments have been conducted to determine whether high air velocities prevent approach responses because of physical impediments as outlined above, or whether in some cases the responding insect is inhibited from even initiating an orientation reaction when it senses the improper velocity. A behavioral effect of air velocity on the responding sex has been documented in two cases: 1) honey bee drones, Apis mellifera L., mate with queens while in ight. The altitude at which drones tend...
Posted on: 02 March, 2017
Author: Alexander P
This article is about pheromones management for gardeners. In each species for which pheromone release and pheromone responsiveness have been examined separately, these two phenomena correspond closel... This article is about pheromones management for gardeners. In each species for which pheromone release and pheromone responsiveness have been examined separately, these two phenomena correspond closely in timing. For species that use sex pheromones to communicate over long distances. it would seem reasonable to assume the exact time of mating would be determined by the releasing sex. The process of pheromone release presumably initiates the premating communication sequence. Thus, when female cabbage...
Posted on: 02 March, 2017
Author: Alexander P
Let us discuss the top pheromones in the animal kingdom. However the pheromone scent trail alone of other species appears to be insufficient to elicit trail-following behaviour of recruits who need to... Let us discuss the top pheromones in the animal kingdom. However the pheromone scent trail alone of other species appears to be insufficient to elicit trail-following behaviour of recruits who need to be guided by the scout bee to the food on their initial trip, although thereafter they are able to follow the trail on their own (Cruz-Landim and Rodriquez, 1967). The trail pheromone is secreted by the...
Posted on: 02 March, 2017
Author: Alexander P
Pheromone can have an impactful role on insects. In this article, we discuss how pheromones influence insect behavior. The effect of pheromones on anemotaxis has been examined in several species of insects. Field observations often indicate that the number of individuals arriving at pheromone source decreases as the wind velocity decreases below some threshold value. In the scarabaeid beetle, Rhopaea magnicomis (Blackburn), males exposed to sex pheromone ew at random when winds of less than 135 cm/sec were present, but with an increase in wind velocity to 225 cm/sec, males were observed ying toward the source (Soo H00 and Roberts...
Posted on: 02 March, 2017
Author: Alexander P
The top pheromones in bees are important. Bees recruited to an attractive natural food source do not follow the dance directions very precisely (Von Frisch, 1967) nor is it desirable that they should ... The top pheromones in bees are important. Bees recruited to an attractive natural food source do not follow the dance directions very precisely (Von Frisch, 1967) nor is it desirable that they should do so. A natural food crop is usually distributed over a considerable area, and, if the arrival points of the recruits are also widely distributed, a colony can exploit it more efciently than...