For the first time, my garlic crop is suffering from an infestation of black aphids. Below is a photo of the most infested plant. They just love sucking the sap out of the leaves and stem. And here was me thinking that garlic had no natural pests. I was so wrong.
I have been keeping an eye on them for the past week, hoping that a beneficial insect predator would come along and cull the infestation. So this morning when I checked, it had just got worse and no friendly insects in sight. Instead of losing my entire crop of Australian Purple Garlic, I had to take action.
Sap sucking insects do not like being sprayed with Eco-oil. It gets clogged in their spiracle and they suffocate. I rarely uses a spray, but this infestation was not going to get better by itself. Eco-oil is an organic product made from plant oils and an allowed miticide and insecticide in organic systems.
This stuff is easy to use and I added 5 ml to 1 litre of water in my spray bottle, and sprayed the entire crop of garlic. It took about 6 litres to spray everything, and I must say that the garlic looked much better this afternoon. The instruction mention that I should spray again in 3-5 days, so will give them the once over on Thursday to make sure.
Tomorrow I will share another gardening problem that I have experienced for the first time. It has to do with broad beans.
Has anyone else had this type of infestation?