1. 要密的解释
1. 的蟑螂污染得到彻底有效地控制。4)施放胶饵时应以量少、点多为原则。对蟑螂经常出没处,布点要密。有效期满时应及时更换,以 Placements will provide faster control than fewer larger spots, especially for German cockroach control.