Four major types of limestone formations (speleothems): Dripstones: Straws are thin walled hollow formations that resemble drinking straws. As water drips slowly from the roof of the cave, it deposits a microscopic ring of calcite crystal. These rings continue to build and can form straws many centimetres long.
If the sample has more than two or three grubs, you should probably take steps to reduce grub damage. Because grubs sometimes damage only parts of a lawn, take more than one sample if the lawn is damaged in patches.It might not be necessary to treat the entire lawn.t may even become possible to roll the turf up as if it were carpet. You should also control grubs if you notice other animals, such as crows, raccoons or skunks, digging up grubs in the yard and causing damage. In temperate climates, grub damage will be most pronounced during late summer and fall.
1 Not only do the grubs do damage to your lawn, but many animals feed on grubs. 2  By allowing grubs to remain in your yard, you might find that it will increase the tendency of skunks and raccoons to come to your yard.3  Merrit is only effective for three months. 4  Resist the temptation to apply it too early. Not only do the grubs do damage to your lawn, but many animals feed on grubs. 2  By allowing grubs to remain in your yard, you might find that it will increase the tendency of skunks and raccoons to come to your yard.