Are you being affected by drift from your neighbour's pesticide applications? Some interesting discussion in this piece. Whilst there are legal frameworks in place for agricultural pesticide-drift, unfortunately the same doesn't apply for damage to one's plants, pets or family health as a result of urban pesticide-use. Focus of discussion here is only on herbicides but relevant also for other kinds of pesticide applications including insecticides used to treat ants, or aphids (which are much more of a risk to non-target wildlife and human health, especially that of children)
https://safegardening.co.uk/can-neighbour-spray-weedkiller-into-garden/
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