Lawn Fertilizer and Weed B Gon

I want to spray my lawn and hopefully knock out the weeds. I bought the Ortho Weed B Gon bottle that connects to the hose end.

Question is, after applying this, how long should I wait until I use the fertilizer?

Finally, can the Bug B Gon material also be spread along with the fertilizer?

Thank you!

 

The names you provided are generic brand names. They do not say specifically which product you are applying.

You did not say which Weed-B-Gone you are using but I assume it's a 2,4-D based product. Fertilizer application has no impact on the herbicide and vice-versa. If it were me I would apply fertilizer first so when you applied the herbicide you would be watering in the fertilizer.

What Bug B Gone product are you referring to? What insects are you trying to control? Generally this is late, especially in PA, for insect control. Most can be applied with fertilizer. If using the dry granular product make sure you follow the directions regarding watering it in.

 

Dane, apologies.

The Ortho Bug B Gon is the granules spread by a broadcast spreader. The Ortho Weed B Gon is for crab grass and other weeds types. It is a spray on using a hose. Sorry, do not recall the herbicide name. The fertilizer is, of course, spread using the spreader as well.

 

Read your product labels to make sure but I think everything you mentioned can be applied at the same time. Make sure to read up on your pesticide to see if it needs watering in. If so I'd water in the pesticide then toward the end of that process start applying the herbicide.

 

My lawns are too big for me to fertilize or spend much time watering or applying pesticides and herbicides . . . . I mostly just mow, and let the worms and birds do most of the work.

But when I need to apply a herbicide in selected areas to control any particularly irritating weeds, I use a systemic like Weed-B-Gone and apply it by itself and only when the foliage of weeds are completely dry, maybe even a little stressed, and thirsty enough to draw the systemic herbicide deep into their circulatory systems, including the roots. I usually mix a small amount of liquid dish soap with the herbicide to maximize its adhesion to the foliage, and its staying power, so they can have a nice long drink.

I try to do that when it hasn't rained and isn't expected to rain for at least a day. I wouldn't try to combine that activity with fertilizing or watering anything into the soil . . . . that would just undermine the effectiveness of my systemic herbicide.

Maybe I've been doing it all wrong; but that's what works for me the few times I feel the need to apply a herbicide anywhere.

 

I agree Vermont. I am not a fan of all in one's or products that combine multiple ingredients. Often it's optimal to apply fertilizer, herbicide and pesticides at different times and under different conditions. For example it's mostly too late for applying the pesticide mentioned. Applying at this late date misses the harmful grubs which needed to be hit in July and August. This late in the season the pesticide will mostly harm beneficial insects.

The pesticide mentioned is applied as a dry granule. Some instructions don't say to water it in but the chemical is mostly useless when it just sits on the surface. Thorough watering dissolves the chemical and transports it down into the soil to kill subsoil pests like grubs. Watering is good because it's controllable while just waiting for rain can mean that one big thunderstorm may wash it away without letting it soak in. Immediately watering in also gets it off the grass and surface where it can be ingested by children and pets.

2,4-D, one of the active herbicide ingredients that kennyv519 mentioned he would use is absorbed through the green growing (leaves) part of the plant. Applying it then letting it dry and not get rained on for an hour+ helps alot so it is best applied last. But, since Kenny's application method is with a garden hose applying at the end of the watering in schedule for the pesticide helps conserve water.