ផ្ញើអ៊ីមែលទៅកាន់មិត្តភក្តិ
: 23
: 689
: 632
: 2,816
: 4,217
: 168,311
: 112,656
: 1,508,048

Birefly, about pest causing agent for Community (17/01/2012 16:18:57)

Any pest that has experienced the growth and development in order to survive. In the course of existence, the pest is not always entirely beneficial or detrimental to humans. So to recognize and understand them, we would like to briefly introduce the characteristics and effects of some common pests, this more or less influences our lives
1.Termites: Taking advantage of drainage pipes in the walls, underground power lines ... to  the  high ceilings, sucking  termite perforating wall that was built with normal motar (except the concrete> 80),,only to encounter obstacles or  pesticidal effect ,  they  perforate  wall continuing penetration . 

 Food source of termites is  mainly plant products , in which the most  important components  is cellulose . Termites digest cellulose  thanks to  symbiotic organism system living in the termite gut :  theflagellate  system (flagellata protozoa) and microbial system  (Microbial flora) beaking  down  cellulose for the termite .

On the way to  food sources to be  primary  wood and cellulose , termites that can perforate  through a variety of different materials such as soundproof foam , rubber ..., causing serious damage to buildings and other structures, particularly especially furniture, and carrying soil and moisture damaging  equipment and machinery, creating conditions for musty fungi, rotting development . Especially in the dry season, living trees provide  water for them, especially young trees and damaging agricultural production. 

Since the larvae  past through molting  5-7 times,  worker s  accounted for 70-90% of total  individuals, assumed most of the work : to find food, build  terminary , communication route ,  care for eggs, rearing larvae, queens, soldiers  with food  which has been processed through the intestinal tract. Due to  the above characteristics, especially characteristics exchanging the outside  so these components should be exploited to destroy the entire terminary. 

Most of  termites receiving  food rations from  workers, the individuals in the group often lick to exchange  feed together, taking advantage of features on  application to spreading killing termites. Spreading killer aims at the two main effects: a direct impact on  termites  through digestive system and kill symbiotically microbial system in the termite gut. 

Pheromone regulates the level of the Queens is transmitted from individual to other one, causing effects in the entire termites thanks to  two characteristics:  licking  and exchanging  feed together  

Soldiers have  function to protect  group ,  guard, warn ,  reconnaissance, support  workers to look for food  , the head  having  solid, strong, teeth develop ,  red-brown head, a single venomous ganglion, when  attacking it excretes of acidic  white milk. When facing unsual change  like loud noise, changes in light intensity, strange smell or communication  is broken and soldiers break into the place of incident and alert the population, the same time , one alerts the others  generated by transmission of plasm, taking advantage of these features is found where termites being  in  action

Queens  excreting  inhibitive  pheromone , it works to regulate  level in  a group as inhibiting the wing development , inhibiting reproduction of  preparatory  productive level, inhibiting  the complete development of the genital apparatuses of  workers and soldiers.