Could Pyrethin burns be confused with mosaic virus? I sprayed with a Pyrethin-based insecticide recommended by my gardener, and now the leaves turn yellow-mosaicish and papery. I was briefly told that the pyrethin could burn the leaves, especially since the plants had been growing indoors and were not hardened off. Is this what has happened or may the plants also be mosaic virus infected (as I suspect and fear)? Could someone describe the differences and similarities between Pyrethin burns and mosaic virus, please? Thanks, -- Martin