How do neonicotinoids differ from other pesticides? They are sprayed more frequently. They are incorporated into the plants themselves. They are targeted only to flying insects. They are for weeds, insects, and fungi.
The biggest difference between neonicotinoids and all other pesticides is that neonicotinoids work 'systemically'. This means that once the seed (or the soil in which the seed has been planted) has been coated/treated with the insecticide, that insecticide is then taken up through the entire plant via it's vascular system. So, it ends up in the plant's roots, stem, leaves, flowers, fruit, sap (guttation), pollen and nectar.....and it - does - not - wash - off.
Source: http://beestrawbridge.blogspot.com/2013/04/what-exactly-are-neonicotinoid.html
in easy words, the answer is "They are incorporated into the plants themselves." Hope you understood it.....
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