Many Dome owners frequently ask us questions regarding pest control. Here are some ideas for doing aphid control:
1. Is the Dome planted really densely? Thin the plants by pulling the most infested plants first.
2. Spray the entire plant with an insecticidal soap or a mixture of dish washing liquid and water. Joy and Seventh Generation are good choices. Make sure to spray the underside of each leaf. That’s where the bugs like to hide.
3. If the infestation is spreading to other plants in your dome, in addition to the above methods, you may want to create a plant free dirt zone, this will slow or stop the bugs moving on to other plants.
4. Use the following recipe given to us by Yart:
a. 2 TBS of ammonia
b. 2 TBS of lemon scented Joy dish soap
c. 1/4 Can of cheap beer and then mix with 1 galloon of water
d. Udgar said that along with spraying the plants, you can also buy yellow plastic lunch plates (aphids are attracted to yellow). Smear cooking oil on them, or Vaseline. Aphids will go to the plates and get stuck. He said to shake the plants daily, some of the aphids will fall off onto the plates, others will fly away, others will die due to the soap solution. Do this daily till they are gone.
Q. We have had a huge attack of aphids on tomatoes growing in my dome.
Has anyone had experience with this problem and can shed some light on natural methods to control them?
A. There is an excellent report from a government agency on aphid control.
It can be viewed at http://attra.ncat.org/attra-pub/PDF/gh-aphid.pdf.
They make it available as a PDF file. It is excellent and has lots of resources to buy biological controls.