Cockroaches
German cockroach
Blatella germanica L
| Appearance | : | Adult light brown, 2 black longitudinal stripes on breastplate, can fly but only at very high temperatures. | |
| Development | : | Incomplete metamorphosis. Egg stage: 2 to 5 weeks, with an average of 7 egg packets per female. | |
| Lifestyle | : | The German cockroach is light-shy and omnivorous. They can survive 10 to 40 days without food. | |
| Injury | : | Contaminated food carries contamination and is a carrier of bacteria and mites. | |
| Prevention | Seal seams and cracks after treatment. Maintain strict hygiene. |
Brown-banded cockroach
Supella Longipalpa F
| Appearance | : | The brown-banded cockroach resembles the German cockroach, but lacks the longitudinal stripes. | |
| Development | : | Incomplete metamorphosis, with an average egg sac containing 16 eggs. The larvae molt 6 to 8 times. | |
| Lifestyle | : | Not or hardly sensitive to light, very active, sometimes flies. | |
| Injury | : | Contamination of objects and food, Dragging of infectious substances. | |
| Prevention | Seal seams and cracks after treatment, observe careful hygiene. |
Oriental cockroach
Blatta Orientalis L
| Appearance | : | The adult oriental cockroach is blue-black, 2.1 to 2.8 cm long, excluding antennae. Females have small wings, while males have larger wings and cannot fly. | |
| Development | : | Incomplete metamorphosis. Maximum lifespan approximately 9 months. | |
| Lifestyle | : | Light-shy, omnivorous, but preferring sweet and starchy foods. Oriental cockroaches can live for two to four weeks without food. | |
| Injury | : | Contaminate food, carry bacteria and mites. Transmit infectious agents. | |
| Prevention | Observe careful hygiene, keep food cool. |
American cockroach
Periplaneta americana L
| Appearance | : | Adults are glossy reddish-brown, with light yellow patches on the wings and pronotum. Length: 2.8 to 4.4 cm, excluding the long antennae. | |
| Development | : | Incomplete metamorphosis. The egg stage lasts 5 weeks at 30 degrees Celsius, 7 weeks at 25 degrees Celsius. The maximum lifespan of an adult is 2 years. | |
| Lifestyle | : | Light-shy, omnivorous, and preferring human food. American cockroaches can live for 4 to 6 weeks without food. They prefer dark, warm, and moist places. | |
| Injury | : | Contaminating food; they carry bacteria, mites, and diseases. | |
| Prevention | Remove food by ensuring good hygiene. Seal seams and cracks if possible. Store food in cool warehouses. |