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The time and number of treatments required to get rid of roaches depend on several factors, including the type of roach, the severity of the infestation, and the extermination method. For small infestations, a single treatment may be sufficient, with results seen in as little as 1 to 3 days. Larger or more severe infestations will require several treatments. It typically takes around 2 to 8 weeks to completely eliminate roaches in most cases, but severe infestations can take up to 6 months to fully resolve.

Birds are often averse to certain strong scents. For instance, the odor of predator urine, such as that from foxes or hawks, can deter them. Similarly, birds may dislike the pungent aromas of garlic, onions, and chili peppers. Essential oils like peppermint, eucalyptus, and citrus can also be effective in keeping birds away. However, it's important to note that individual bird species might react differently to these scents, so it might require some experimentation to find the most effective repellent for your specific situation.

Roach spray usually starts working almost immediately on contact—within seconds to a few minutes. However, if it's a residual spray designed to keep killing over time, it can take hours or even days to fully affect roaches that come into contact with treated surfaces. For larger infestations, it may take at least a week to see a noticeable drop in activity, since not all roaches are exposed at once.

The cockroach most easily confused with water bugs is the Oriental cockroach, for several reasons. Their shape is most similar to a water bug, and they’re notorious for seeking out and living near water. If you capture one of these bugs close to a water supply, you can quickly tell if it’s an Oriental roach or a water bug. These roaches are a darker color, and they cannot fly, while water bugs are a lighter brown and can fly to escape.