I think it was DDT. I don't believe there has been a substantial change in the weather since the '50's according to most reports. I think every year we progress from the last DDT spraying, the more ticks and chiggers we experience. Although, you would think that the populations would have reached an equalibrium since then. Just a thought, I am not a scientist and have not looked into it too deeply. Perhaps Sue has some insight.
Jeff
Jeff
