The most common causes of female infertility include problems with ovulation, damage to fallopian tubes or uterus, or problems with the cervix. Age can contribute to infertility because as a woman ages, her fertility naturally tends to decrease. Abnormal cervical mucus can also cause infertility.
Apply post-emergence crabgrass herbicides. These herbicides kill the crabgrass and will completely eradicate any crabgrass populations when used in conjunction with a pre-emergency herbicide. Example herbicides include Fenoxaprop and Dithiopyr, and target crabgrass without harming lawn grass species.tep 3. Use pre-emergence herbicides. These chemicals prevent crabgrass seeds from sprouting, breaking its life cycle. They do not affect already-growing plants, thereby protecting your lawn.
For crabgrass, use a granular pre-emergent crabgrass preventer in early spring, and a crabgrass killer or a broadleaf weed killer that contains crabgrass killer in summer. To prevent broadleaf weeds from germinating in early spring, you need granular, pre-emergent broadleaf weed killer.rtho weed killer, brand named Weed-B-Gon Weed Killer, is easy to use and can be applied to the lawn more than once in a season.