If these eco friendly methods are not being effective you can use strong chemical pesticides. But make sure that are harmless to human and animals and will only kill pests. Some chemical are very effective but their constant use can make you asthma patient. So, see the ingredient of the chemical insecticides before purchasing. And last option is to take professional pest control service. The agents of the agency providing such service will come and recognize the kind of pests of your surrounding and take necessary steps to control their population. You can rely on one of the Noida pest control agencies to get pest control solution. They provide services of Pest Control in Noida and nearby cities. Pest control is becoming difficult now a day due to tremendous increase of pollution. Pest control Noida agencies are therefore putting their best effort in killing and controlling pests' population.