Pyrethrum spray is a way to get rid of some pests in one hit quickly but the bio-pesticide (commercial organic farmers use it )and treatments like neem oil and a whole bunch of other teas and concoctions as I'm sure you are well aware of, offer longer term solutions. As well as physical repellant companion plants and companion plants that harbor beneficial predatory insects and birds that feed on the bugs you are trying to eradicate .
Pyrethrum spray is a way to get rid of some pests in one hit quickly but the bio-pesticide (commercial organic farmers use it )and treatments like neem oil and a whole bunch of other teas and concoctions as I'm sure you are well aware of, offer longer term solutions. As well as physical repellant companion plants and companion plants that harbor beneficial predatory insects and birds that feed on the bugs you are trying to eradicate .