The warm humid weather of the last few weeks has been a fantastic breeding ground for bugs of all sorts, - i've watched from my study window as Caterpillars have eaten my Roses, and i've found Aphids, Slugs, Vine weevil and chafer bugs in clients garden this week alone. Most of these pests can be got rid of with chemicals, but I feel that often that's too harsh a solution and besides, what if the problem is on your fruit and veg. That's why i've been using Predators, - bugs that eat bugs.
These are available for all kinds of pests, and are often available from garden centres as well as online. i've tried the vine weevil nematode nematode (steinernema kraussei) which is sent in a soil like pack that you mix with water and water onto your pots or plants, The Red Spider mite predator (phytoseiulus persimilis) is provided in a test tube of vermiculite, and you shake the bugs out onto your plants (usually in a greenhouse) - The other one i've used reguarly is Encarsia formosa which get rid of Whitefly, and Ladybird pupae which are great for aphids. I havn't used the slug predator yet (phasmarhabditis hermaphrodita), but after my newly planted lettuces disappeared this week, - that will be next on my list!