3 ms·And don't clean fallen leaves in the autumn...by ivanhoe 7y agoAnd don't clean fallen leaves in the autumn...rtkwe 7y ago> Another tip: Leave leaf litter in place. The dead plant material is an important part of healthy soil and offers protection for insects during the winter, Berenbaum said. They say exactly that in the article.ivanhoe 7y agoindeed, missed that sentence on first reading...