Alfalfa weevil

New stand planted in September had a soil test and all was good now I’ve noticed about half the field is 18 tall and budding and the rest is only 8/12 inches tall no buds but have a weevil problem should I just cut it now before they destroy it even though it’s early then top dress fertilizer to try to even it out or spray for bugs (not sure of the cutting restrictions after spraying) thanks for any advice

Alfalfa weevil