Cockroaches found in Thailand

General characteristics of the cockroaches

Cockroaches have an oval body, a flat shape from top to bottom, of varying color according to the species: light brown, brown, dark brown, almost black. The body is shiny, with a small head under the back ridge. The first large area protects the head and mouth well.

The head area under eyes has a 1 pair of yarn-like whisker moving quickly for navigating and sensing food. It has the shape of a bite to eat bite eat both plants and animals.

There are 2 pairs of wings which the first pair look like a pair of thin leather, the other pair are light weight which able to stretch out widely. When the wings are folded, they will lay beside their body. Some species have longer pair of wings than their body and some have shorter

By separating gender, cockroaches can be observed from the abdomen of females and males will have an identical pair of cerci 1, but males will have one another of this pair styles which is a common feature of cockroaches.

Cockroaches that most common found in Thailand

1. American cockroaches have a source of gas in Africa, a cockroach with a large body about 30-40 mm long, with reddish-brown wings, long wings of both males and females, flying brilliantly, prefer to go out at night, sleep, or hide in corners, under the storage cabinets, in the dark, it is found in the warehouse or the general house grows at full age when 7 days, ages 4-7 days begins to breed, lay eggs at a time. Bubbles in one female ovaries1 22- 40 ovaries hatch within 30- 46 days, aged 212-294 days.

2. German cockroaches It has a light brown body, about half an inch long. Long wings of both sexes fly well with two black stripes. It is about 100 days old, prefers warm weather, adults 7 to 10 days will mate. Females with eggs constantly drag their armor against their stomach until they ripen for 2-4 weeks. But in big ships such as warships. Cargo ships will suffer from the infestation of cockroaches, they will breed very quickly. Nowadays, these insects are found to be against hydrocarbon series insecticides such as DDT. Dieldrin.

3. Ordinary cockroaches or Australian cockroaches are a big cockroaches, approximately 27 – 33 mm long, dark brown or black and patterned. Yellow or white, top 3 breasts and outer edges of the abdomen. The female does not have wings. Only 1/4 of the belly but fly, this type of cockroaches are often a groups of people. In the dark, the storage of old stacks, etc.