Herbicides For Beans In Kenya: Weed Management In beans.

I consider myself a typical Kenyan.

Like every typical Kenyan, I decided to have a side hustle to boost my income.

For some time, after cracking my head, I decided to invest in bean farming.

I grew the beans and they got to the weeding stage.

After some serious thinking, I opted for use of herbicides for beans instead of the normal tillage.

So this post is about the herbicide to weed bean crop, and my experience doing it.

Horticulture copywriter

Herbicide to Use On Fallow Land in Preparation for Bean Planting.

The land I leased was fallow.

It had some grass and other weeds actively growing on it.

Since I have some background in agriculture, roundup—also known as glyphosate a broad spectrum herbicide, was the best herbicide to use for this case.

It kills all the plants including weeds that it has been sprayed on.

Therefore, before I plowed the land, I sprayed roundup herbicide.

By doing this, all the weeds and unwanted plants on the field were killed.  

Herbicide to use After Beans Have Germinated:

This is where many bean farmers find themselves at the crossroad.

They don’t know which herbicide to use on their beans.

The good news is, “they don’t need to be in that confusion anymore.”

All they need to do is use an herbicide known as Bentazone 480g/l.

In Kenya, this herbicide is sold under the brand name “BEANSCLEAN 480SL

Here below is a photo showing the herbicide:

BEANSCLEAN herbicide for beans

How to use Bentazone/ BEANSCLEAN 480 SL

This herbicide is fairly easy to use.

If you intend to use a knapsack sprayer,

  • Fill your Knapsack up to the 15-liter mark with water
  • Add 200 ml of Beansclean in the 15 liters of water.
  • Add a suitable sticker.
  • Top up with water the remaining space until you reach the 20-liter mark.
  • Agitate the tank using a stick or suitable material.
  • Close the lid and the herbicide is ready to use.
  • Spray it on actively growing weeds while ensuring all the weeds come into contact with the herbicide.

My friend and I did this, and I found that we used 2 hours to finish spraying one acre.

How Field Looked As They Applied Herbicide For Beans

Application of bean herbicide using knapsacks

How Beans Field Looked Like After Herbicide was Used

Bean field after using beansclean/bentazone

Mode of Action of Bentazone/BEANSCLEAN Herbicide

Bentazone is a selective post-emergence herbicide.

It kills all weeds and plants that have germinated and have come into contact with it except beans.

For the herbicide to be effective, you must spray the weeds when they are still young.

The weeds should be at 3-4 leaves stage for this herbicide to effectively kill them.

3 days after we finished spraying our bean farm, I noted some older weeds are resistant to this herbicide.

That’s why the manufacturer insists that you spray the weeds when they are still young.

Another thing I noticed, it slightly injured the bean crop. As shown in the photo below.

I expect the beans to overcome this injury and continue growing normally.

Slight Burning Injury Caused By Bentazone On Beans.

Injury caused by use of herbicides on beans

The Bean Farm 1 Month Later after Using Bentazone Herbicide:

From the photo, you can see that Bentazone is very effective in controlling weeds in beans.

The field is very clean, and it has very few weeds in it.

Bean farm on which bentazone has been used

Wrapping it up on Herbicides for beans:

Which herbicides are you using for bean farming and what is your experience?

Please share them with in the comments section below!