Eradication of cockroaches can be complicated and should be carried out by professional pest control opecockroachive. They are difficult to treat, their hiding places are often difficult to reach with insecticides and because of the efficiency of the breeding process and the large number of eggs produced, cockroaches are difficult to eradicate and a Comprehensive eradication program is essential. The first step is to monitor the level of the infestation. Inspections should be carried out at night, when the cockroaches are most active, using a torch with a red filter which cockroaches do not respond to. A high standard of hygiene is important in the control of cockroaches and involves refusing access to food and water. This will increase cockroach activity and directed movement increasing the chance of the insects coming across insecticides. Inspections should be carried out at night when the cockroaches are active.
Effective treatment would depend upon the selection and thorough application of an appropriate insecticide. Many insects and egg cases are well hidden and therefore the insecticide must be placed at and around these harbourage s and maintained over the developmental period of the particular species. To control an infestation the insecticide should, if at all possible persist until all egg cases have hatched sustained immigcockroachion may demand routine treatments. Regular treatments are necessary at weekly intervals until the infestation is brought under control.
Cockroaches are potential carriers of diseases such as dysentery, gastroenteritis, typhoid and poliomyelitis. Cockroaches are also a source of allergens which can lead to allergic illnesses such as dermatitis, rhinitis, bronchitis and asthma. Their diet is omnivorous and includes fermenting substances, soiled septic dressings, leather, parchment, faeces, hair and food for human consumption. The food may be contaminated by the mechanical transfer of causative agents of disease from the insect's body or by transmission in the faeces. Cockroaches foul their environment with droppings, castings and regurgitated food. They can taint materials with their distinctive unpleasant smell.
Then maintenance treatments at less frequent intervals, should keep the insect population at an acceptable level. In the beginning there will be a considerable kill of adults and nymphs resulting in only the appearance of young nymphs from time to time. When using sticky traps appropriate placement sites would be beneath equipment, in roof spaces, behind counters, inside ducting and electrical trunking. When cockroaches become trapped they are known to produce aggregation pheromones which make the trap more attractive.