Entry : Grocery, Packaging, Laundry, Sewage Pipes, drainage, air duct vents etc. Ideal Environment : Human habitats provide an ideal environment for the cockroaches, any eatables left in kitchen with preference to starch and sugar serves as food to them. Types : Over 3500 species are known but only four are found in our, homes. These species are: GERMAN, AMERICAN, ORIENTAL, BROWN BANDED. Reproduction : 4 to 8 eggs casefemale with 30 to 40 eggs per oothica, nymph to adult-60 days and after attaining sexual maturity, 50% population is female, a single female can produce almost 1, 00, 000 young ones in a year. Damages Caused : DYSENTRY, DIARRHOEA, GASTROENTERITIS TYPHOID, CHOLERA, PNEUMONIA, DIPTHERIA TUBERCULOSIS. LEPROSY, HEPATIS. Preventive measures : ENVIRONMENT MODIFICATION-DENY FOOD, WATER AND SHELTER to cockroaches by keeping surroundings clean and properly dispose off the garbage. Treatment : Sprays, Herbal Gel and smokers