Right, but again, underlying issues. Dwarf varieties, mainly Seville tends to be thatchy from too much nitrogen over it's life. Dwarf varieties tend to have a thatch layer of dead and live stolins. This is already an inherent problem for stolins with roots exposed to the air, they tend to struggle to exist. All the webworms do is expose this issue which will also occur from heavy frost. These same areas will have issues webworms or not. Thatch is why these areas don't recover easily not severe webworms. Armyworms mabe, but not webworms.
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