Cockroaches, or roaches, has the closest connection with us at indoors.
• Blattella Germanica
-- body length of 10~16mm, smallest in size among cockroaches.
• Periplaneta Australasiae
-- body length of 25~35mm
• Periplaneta Americana
-- body length of 30~50mm, largest in size among cockroaches
1. Cockroach is a source of allergens---House dust mite can induce allergic asthma, followed by cockroach, which also triggers asthma. Furthermore, cockroach can cause food allergies. It contaminate food and cause problems.
2. Cockroach droppings will cause cancer--- Cockroach’s faeces contain mutation in gene and carcinogenic properties. The secretions include Xanthurenic acid, Kynurenic acid and 8-hydroxyquina-ldicacid.
3. Cockroach act as a reservoir of AIDS infection.
4. Contaminate food, cutlery, and spread diseases---Because they are unsanitary with their eating habits, and often appear in areas such as toilets, cesspits, sewers and garbage bins. They will also regurgitate digestive fluids onto food as they eat it.
5. Nibble and damage objects, wallpaper, book bindings and documents.
6. Biting human flesh---especially those who does not keep hands and feet clean, not getting rid of lingering food odours.
7. Damage expensive electronic devices---often ruin internal electrical components.
1. Invade through sewers and drains during night.
2. Invade through doors, windows or crannied walls.
3. Hide out in goods and bags to get in.
4. Hide out in gas tongs.
5. Moved in with furniture while moving home.
1. Improve environmental hygiene:
• Keep your house clean
• Keep the kitchen utensils clean
• Keep the leftovers in refrigerator
• Dispose daily leftovers and waste
2. Physical ways of preventing:
• Using cockroach trap box
• Using electric shock
• Using food bait trap
3. Chemical ways of preventing:
• Poison bait cockroach trap
• Residual insecticides method
• Fume-based treatment
• Cockroach repellents
4. Physiological control methods:
• Insect growth regulator
• Pheromone
5. Biological control method:
• Parasitoid wasp
• Nematoda
• Natural predators and parasitoids
• Cockroaches are standard drunkard. This may be apply as a technique when catching it!
• Feeding Red Arowana with live cockroaches can make their scales shinny and colourful!