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seed & weed fertiliser

Fertilizers containing pre-emergent herbicides selectively prevent certain kinds of weeds from finishing their germination cycle. There is no point applying this type of weed-and-feed mix after weeds are growing on your lawn. You have to apply it early in the growing season before weeds appear. Make sure the pre-emergent herbicide in the fertilizer kills the kind of weeds that have plagued your lawn in the past. You might apply a starter fertilizer containing a pre-emergent herbicide before you sow your lawn seeds.

Post emergent herbicides kill weeds after they appear. Some post-emergent, systemic herbicides that you can apply directly on lawns only kill weedy grasses, while others only kill weeds with broadleaf weeds. Contact herbicide such as those including the active ingredient glyphosate kills on contact. To use one of those on a lawn without killing the grass you have to daub it on individual weeds.

You can sow grass seeds now and kill weeds later with a post-emergent herbicide or kill weeds now with a pre-emergent herbicide and plant the seeds later. Weed-and-feed fertilizers are specially formulated combinations of turf fertilizer and herbicides that you apply either before you plant grass seeds or on established lawns.

Pre-Emergent Weed-and-Feed Fertilizer

You apply pre-emergent herbicides before weed seeds germinate, typically in the spring. Pre-emergent herbicides do not prevent weed seeds from germinating; they suppress the development of weed roots as they germinate. They’re usually effective for two weeks to three months, depending on the formulation, and you have to water the lawn after applying for the herbicide for it to be effective. There are pre-emergent herbicides to kill both broadleaf weeds and weedy grasses. You can apply them before you sow your grass seed. If you apply a pre-emergent herbicide that kills weedy grasses, you have to delay sowing your lawn seed.

Post-emergent weed-and-feed formulations kill selective weeds that are already growing in your lawn. Make sure that the herbicide in the formulation you buy kills the type of weeds that are growing in your lawn. Most weeds make their appearance in the spring, the best time to apply weed-and-feed fertilizer.

Good for you, Jennifer! The natural bacteria in pea and bean inoculant (sold wherever you buy the seeds) allows these legume-family members to take their own plant-feeding nitrogen right out of the air. And yes, there’s still time to give this all-natural edge to your spring peas.

But no worries. Tilling up your soil now will kill the grubs. And this is a great time to lay sod.

Then prevent this year’s beetles from laying a fresh ‘crop’ of grubs in your turf this summer. Female beetles will only lay their eggs in lawns that have been scalped and whose soil is constantly wet.

Pine mulch? Depends on what you mean. Pine nuggets are just wood mulch. But pine straw makes an excellent mulch. In fact, it’s the mulch of choice in many area down south.

Inoculate your peas and beans

Eh, you’re a little late for church, John. I’ve been preaching the merits of yard waste composts like Maryland’s excellent LeafGro product for many years now-especially on lawns, which really do respond dramatically to the organic matter that a compost feeding delivers.

Right now is the time to spread corn gluten meal on your lawn to prevent dormant weed seeds like crabgrass from sprouting as you give the turf a nice gentle spring feeding, Mike. But don’t delay. The warm weather has those dormant seeds primed to pop early, and no pre-emergent will work after weed seeds have already germinated. Don’t spread any new seed now. The time to sow grass seed is late August in our area.