Maximum Yield USA April/May 2019 | Page 39

“ The most optimal way to handle greenhouse weeds is the old-fashioned method of pulling them out completely using a weed puller.” HANDLING A CURRENT WEED ISSUE Your first impulse may be to purchase a weed killer and go whole hog on killing off all the weeds in your greenhouse. This attempt may be the quickest way to kill the weeds in your greenhouse, but it could also damage the crops you’re intentionally growing. The most optimal way to handle greenhouse weeds is the old-fashioned method of pulling them out completely using a weed puller. You’ll definitely want to make sure you pull them out roots and all as they can come back if you don’t get the entire root. This effort can be backbreaking work, but the result is worth it. HERBICIDES — NATURAL AND CHEMICAL If you do turn toward a natural or chem- ical solution, be sure to find one that fits your needs and carefully follow the directions. Some herbicides are specially formulated to be used inside a green- house, so it can be helpful to find one that’s labeled for this purpose. Spraying it all around your greenhouse will proba- bly result in other plants being hit by the weed killer. There are some weed killers on the market that are intended to be used against specific plants where you apply a gel to the leaves of the plants you want to be eliminated, and this may be a better option for your greenhouse if you’re being overrun. STOP WEED SEEDS BEFORE THEY START You want to try eliminating greenhouse weeds before they go to seed. If the weeds have gotten to this point, you’ll have to deal with weeds a lot longer than just handling the visible ones. PREVENTING WEEDS IN THE FUTURE There are several things that you can do to prevent weeds from taking hold down the road. One of the key ways to prevent weeds in your greenhouse is to keep track of everything that comes into your greenhouse. You want to use clean media that’s not going to be contaminated with weed seeds. Taking soil from other areas of your garden or yard may mean you’re introducing seeds into your greenhouse. It’s also important to control any weeds in the surrounding area of your greenhouse. Having tons of weeds outside will eventually cause their seeds to make their way into your perfect growing environment. Keep in mind that if you use herbicides outside of your greenhouse to handle this growth, be sure to protect the plants inside of your greenhouse by closing vents, windows, and other openings to prevent it drifting inside. You may even find it helpful to use weed barrier cloth inside of your greenhouse. If you have a dirt floor, apply it to the floor in addition to your growing beds. A weed barrier may seem like overkill, but it can be helpful. You’ll want to monitor any newly potted plants you bring into your greenhouse in the future. There’s the possibility they may be harboring weeds. As soon as you notice anything additional growing with your new plants, you’re going to want to take care of it. Additionally, you’ll want to wash anything that had dirt in it if you’re planning on reusing at a later date. This washing will remove any weed seed residue in addition to other potential problems that were in the soil. Stop the comeback before it starts. Don’t stop at just washing your pots and other growing containers. You should also be cleaning and sanitizing your gardening tools, as well. Maximum Yield 39