In my experience, I have not seen pesticides being used for Coconut. The use of asafoetida is common. Many people also mix salt along with manure. But these are natural things.
I will ask other coconut growers to know if pesticides are being used on coconuts. Interestingly all our coconut needs are being met by the four trees at home, so I have not really thought about the inorganic coconut too much.
Interesting write up. It definitely helps to be careful while choosing vegetables.
I am a little relieved to see black spots on some of the tomato varieties and Brinjals here. I think the amount of pesticides used near our town seems lower than the amounts that are being used near Bangalore (for e.g.).
Mangoes: Often the ants on the mango trees are got rid off. They actually help reduce the insect population. Most of the mango trees in our farm had ants. Even the trees at home had a lot of ants. We had near zero insect issues with mango fruits this year and last year.
Oil is another big problem in food today. We can reserve this topic for another time.
Regards,
Harish