GB/T 23796-2009Surveillance methods for vector density - Fly (English PDF)

2.1 Fly

Insecta Diptera Cyclorrhapha mesh petals have class, divided egg, larva, pupa and adult four instars.

2.2 Fly density

Within a certain period of time or space unit area to monitor the number of flies.

2.3 Fly breeding site

It flies in the presence of a suitable animal breeding corruption, corruption plant, human excrement, animal dung and garbage containers or location.

2.4 Standard room

To 15m2 as a standard room, which is less than 15m2 individual rooms are considered a standard room, more than 15m2 room 15m2 press

Each converted several standard rooms.

3.1 Cage traps

3.1.1 Scope

For outdoor adult flies density and type of monitoring.

3.1.2 Monitoring Tools

Catching flies cage. a diameter of 250mm, the cage body height 400mm, cage-foot-tall 100mm ~ 300mm, conical core high 350mm, top Straight Diameter 25mm (see Figure A.1).

3.1.3 Procedure

Each catch flies cage bait placed within the disc 50g brown sugar, vinegar 50mL and 50mL water, or in accordance with the purpose of monitoring the use of other bait.

Bait tray and catch flies cage along the gap should be less than 20mm. Monitoring time is 9.00 to 15.00 (or provided in accordance with the purpose of monitoring Fixed monitoring time). After capture flies anesthesia classification, counting and recording of temperature, humidity and wind speed and other weather data (see Table B.1).

3.1.4 Density calculation

Density calculation see formula (1).

(1) Where.

D --- flies density, in units of time per cage [only/(cage · h)];