Pests are somehow an ancient troublemaker. But ancient troublemakers always find their way into the present. I love garden radish, as well as kale, as well as kohlrabi, and of course the delicious Brussels sprouts. All this plant have one thing in common: they are cruciferous vegetables. Cruciferae have one big enemy: the cabbage moth, also known as Diamondback moth. 

We did close checks on our garden, basically we visited it many times a day. At first the leaves looked good. But some days later the leaves started having in them. We didn’t take it seriously at first because we are first timers, never had any garden before. So day by day we found a lot more holes.

When we walked along the radish and picked some of them white flies started to swirl off.  Lumia first thought that this is the Greenhouse whitefly, and in accordance to our books the Greenhouse whitefly could be fought against using ichneumonidae. But as we weren’t in a greenhouse and we had no ochneumonidae at hand we checked for other options. We didn’t find any, especially organic ones.

Finally after one time when lots and lots of flies took off from a kale patch I went for a closer checkup and I found a lot of eggs and pupas on the backside of the leaves. I compared them with the images on the books and found that our pests really are Diamondback moths.

From that I started to collect all the eggs and pupas on all our cruciferae and killed them (yes, I’m a vegetarian but those animals are eating all my food). We covered the new, not yet eaten plants with farmers net to make sure only the current plants need this kind of treatment.

Now, from day to day we find fewer pupas. All our cruciferae are growing better and the garden radish is delicious. 

From cruciferae you might also like

Add new comment

About the Author


Nick's picture

Gardener, Biogas Practitioner and Webdeveloper. Living beyond buckthorns since 2016.

Jump to

Tiny mandala garden with a sea buckthorn
Bee on a calendula flower
First fire burning in the repaired fireplace
IKEA Lack table - with more storage space
Huge red gooseberries
2 nearly ripe tomatoes in a small tomato green house
Organic apple juice made in Finland
Permakulttuuri Nyt event at Annala Helsinki