Friday, 20 February 2015

second class we learn about cockroaches

types of cockroaches?
>american cockroach
-The largest of the cockroach pest species, the body of an adult American cockroach is 1.5 to 2 inches in length.
-Color: reddish brown, with a yellowish band behind the head.

>german cockroach
-Adults are 1/2 inch- 5/8 inch long,
-Light to medium brown with 2 dark distinctive stripes behind the head.
-The young (nymphs) are wingless, smaller and much darker in color, with a light stripe on their backs.

>oriental cockroach
-Dark brown or black species.
-Less domesticated than most species.
-Habitat include sewers, damp basement, outbuildings etc.
-Have strong, repulsive odor.
-Longest life cycle
-Tends to favor colder climates.

>disease cause by the cockroaches
-Carry Salmonella typhimurium, Entamoeba histolytica and virus for poliomyelitis.

>how to control?
-using the special spray only for cockroaches.

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