Generally speaking, how various times should you spray broad branch weed surrounded by the grassland to acquire optimum results? I understand that you own winter annual broadleaf weeds as powerfully as...

I understand that you own winter annual broadleaf weeds as powerfully as summer annual broadleaf weeds.

And things such as henbit, chickweed germinate contained by the Fall and actively grow during the winter time. So it would be better to spray for these in the precipitate Spring?

and then after that in the Spring for summer annuals?

and after again in untimely fall? for?

I guess what I am asking is roughly how many "touch up" applications do most grass companies do on a lawn near an assortment of broadleaf weeds and for what are they spraying for at which times?

Thanks for your answers!
How to attention for a eagerness fruit tree?
Answers:    Weed and nurture through a spreader/sprayer to deter weed growth with a broad variety mix for adjectives weeds and nutrients to promote forceful lawn growth. Optimum time is Fall when roast has dissipated, until that time lawn go dormant and then again surrounded by early Spring after ending frost. That is all that is to say required to maintain. A tough lawn will choke out most weed. For gardens it is the same regimen except near a mix designed for flowers and edibles. For borders and natural paths/driveways - it is a vigil of adjectives out weed killer vs deterrent. That is predominantly sprayer application. Then nearby is bug control and special fertilizations (shrubs, fruit trees, etc) that keep these prairie companies going.