Hi Gerry, the caterpillars in our garden have ate through most of our nasturtions. Do you have any suggestions on how to stop them, there wont be much of our garden left soon!! Thanks
The question to answer is whether you mind losing some nasturtiums in return for having butterflies? The nasturtiums will fall victim to frost in a few weeks anyway. If the attack came earlier in the year if migh tbe worth controlling, and it will peter out in any case.