We used to put half an inch of Dove dish soap or Sunlight dish soap and a half an inch of vinegar in measuring cup and pour it into a quart of warm water and test spray some sample plants and leave them for a few days to test if the plant can tolerate it. Then spray the whole plant and the ground around it. Then wait a minute and spray it all again . Or come back in an hour or the next day and spray again . This works on fruit trees too but always test spray first. You can use this spray for grass too. Test spray a small patch first to make sure your brand of grass will tolerate it.
We used to put half an inch of Dove dish soap or Sunlight dish soap and a half an inch of vinegar in measuring cup and pour it into a quart of warm water and test spray some sample plants and leave them for a few days to test if the plant can tolerate it. Then spray the whole plant and the ground around it. Then wait a minute and spray it all again . Or come back in an hour or the next day and spray again . This works on fruit trees too but always test spray first. You can use this spray for grass too. Test spray a small patch first to make sure your brand of grass will tolerate it.