Cockroach Overview and Control
Cockroaches are one of the most common of all insects and have been for more than 300 million years, as evidenced by fossil remains. All cockroaches are nocturnal, making it easy for populations to build to huge numbers before their presence is realized.

Control
In general, cockroaches can be controlled through a combination of sanitation and traps, baits and/or chemicals.  Although cockroaches are susceptible to all pesticides, toxic pelletized baits scattered outdoors have provided the most reliable control. 
Household chemicals like sodium bicarbonate (baking soda) have been suggested, without evidence for their effectiveness.
Garden herbs including bay, catnip, mint, cucumber, and garlic have been proposed as repellents.
Poisoned bait containing hydramethylnon or fipronil, and boric acid powder is effective on adults.
Baits with egg killers are also quite effective at reducing the cockroach population. Alternatively, insecticides containing deltamethrin or pyrethrin are very effective.

Cocoroach Killing Powder We Are Supplying, 

Ingredient:

Fipronil 0.005%

Spec:

8.9 * 6.9cm/bag

Net weight:

5g in 7g bag

Package:

50 bags/ box, 1000 bags/20 box/carton

Carton size:

40*38*23cm

Suggested dosage

<50m2

50m2-70m2

50m2-130m2

10 bags/1 time, 20 bags/year

15 bags/1 time, 30 bags/year

20 bags/1 time, 40 bags/year