It's been a long, cold, wet and cloudy winter here on Caluka Farms. The cloudy days I think are the most frustrating. When we have a few cloud free days, the pasture growth is substantially better. However, the growth rates are accelerating now as we enter the beginning of spring and I wouldn't mind another 1,000+ ewes to capitalise on the wedge of feed that is already present.
Anyway, on this blog I wanted to show some recent pictures and then answer a question I get asked by visitors to the farm (another group of students are coming in a few hours of writing this).
So, the question I get asked is, where are the red-legs (red-legged earth mites)? What did I spray with and how often do I need to spray? Firstly, I don't have a boom spray, though it is right at the top of my wish list. Secondly, other than a contractor in to spray a few trial strips of abamectin (36g/L product) three years ago, we have not sprayed insecticide since September 2018 when kikuyu was being sown.
I don't have a good answer why we do not have a mite problem. They are certainly there in patches along our boundary fences. I doubt it is because we fertilise a little more than others because our pasture growth has been slow during winter just like everyone elses.
Similarly with conical snails. We have some very large numbers in small areas that I would love to be spraying with carbendazim (of course that is purely as a fungicide for the pastures and the coincidence that it hurts snails is just a wonderful side benefit). However, they are not causing damage and the numbers are way down this year (except in very small areas). Perhaps it is ten thousand hooves making their life hell? I think that does have something to do with it.
We stopped red leg sprays over 25 years ago at Esperance - Made Phil ill, plus we decided the recommendations were a perfect evolutionary system for resistance - proven right. So we still had redlegs but eventually in low numbers, and heaps of predatory insects! Well fertilized clover resists them and over time I'm pretty sure we had clover evolving to resist them as well.
I remember a spring field day when fortuitously the paddock we were walking through was covered in lacey winged insects(lacewings - an insect predator related to dragonflies). None of the other farmers had ever seen anything like that- some automatically were saying- ' you need to spray' . Obviously to them they've been taught every…