Stem Injection of Invasive Knotweed - Part I of II on Green Shoots Injection System

Рет қаралды 914

2 ай бұрын

This video, Part I of II, answers key questions about whether stem injection is the right method for treating your invasive knotweed stand. Part II is at • Stem Injection of Inva... .
0:18 - Herbicide for use with stem injection of knotweed.
0:42 - Stem Injection Advantages.
0:48 - First, the task of injecting is pretty simple.
1:08 - Second, injections are less weather dependent than other treatment methods.
1:52 - Third, Injections are effective even during droughts. In fact, drought seems to enhance the effectiveness of injections.
3:34 - The potential disadvantages of stem injections.
3:37 - First, injections are not well suited for large sites.
4:03 - Second, you can't inject stems under 1/2 inch in diameter.
4:34 - Third, injection uses a lot of herbicide for each injection.
5:21 - Planning the knotweed injection treatment.
5:27 - Consider a map of your treatment site.
6:18 - Figuring out how much herbicide you will need.
8:18 - Buying the materials you will need
8:37 - One other critical thing - knock down the dead knotweed stems from the year before.
9:13 - What time of year should you do your stem injections?

Пікірлер: 8

@SuperFeist 2 ай бұрын

I bought a stem injector from the UK last fall. Did a combination of injecting the largest stems of my big patch of knotweed and foliar spraying twice with a 2 week break in between. This killed about 90% of the knotweed and it's rewarding to see the area not being taken over by knotweed for the first time in years.

@GreenShoots 2 ай бұрын

Combining methods of treatment makes sense in so many situations. In some spots you want more accuracy. In other parts of a stand, you can use a faster method like foliar applications.

@SK-pk3yt 2 ай бұрын

Very nicely explained.excellent information. Genuine person with no monitory benefit

@GreenShoots 2 ай бұрын

Thank you! However, I should point out that my company sells a stem injector. There are others on the market too. Just want to be upfront about that.

@YellowStickerGaming 2 ай бұрын

Great video, except right at the end it was a little unclear. Under what circumstances should one do 2 injection applications -- one in middle of summer, one in fall?

@GreenShoots 2 ай бұрын

I am glad you caught this. If you do an injection in mid-summer, you should do another herbicide treatment in the fall. However, it's very likely the fall application will not be with injection. Most of the stems will probably not be sufficiently large (greater than 1/2 inch in diameter) to be injectable.

@williaml8474 2 ай бұрын

Thoughts on adding ammonium sulfate ( kzfaq.info/get/bejne/l9F5iZCrptqbhoU.htmlsi=FWfl-0dukTQmf4Vf ) to the mix for the foliar application?

@GreenShoots 2 ай бұрын

I would definitely do it if the water to be used in the mix is hard. Otherwise, it is probably not necessary. For those who have hard water, they can also use distilled water instead of buying AMS adjuvants.