Regarding the problem with citrus greening, do botanists think we are all stupid? This is just another way for the industry to up their prices.
First of all, the ingredients of fertilizer are potash, potassium, and nitrogen. Two of these ingredients which aid in the greening of plants can be found in waste water which contains -- soap! Dish water, dirty clothes water, bath water, etc.
Second of all, the thing that pests hate most, i.e. fruit flies, fruit-canker carrying insects and others -- is sour acid. I learned in Bio 101 (Botany) in ninth grade that one of the best acids to use is a common food source: vinegar.
Mix vinegar 50/50 with water and spray it on a plant with a fungus, growth, or insect problem and it will take care of the problem. You may also add a little dish soap to make it cling to the leaves better. That is all it takes. Wow!
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My Palmetto High School chemistry/biology 101 (botany course) really paid off. Perhaps the DOA and citrus "experts" need to resort to looking in our state's DUH Files instead of thinking up ways to play "gotcha." I am boycotting citrus products until the price starts going down.