WMD of insect repellents

[offdalip]

is it possible that the nano versions are significantly more toxic to humans than the lager particles?

it is not about the size of the particle, that has nothing to do with toxicity.

the nano in this case applies to the concentration. whether you have 1 particle dissolved in a jug of water versus a million particles in that same jug of water.

obviously this stuff works at the lower concentration which is generally less toxic than the other way around

[Beeherder]

and eye wonder what the systemic effect might be of releasing something which debilitates the sense of smell of ants and other members of the hymenoptera family?

from: http://www.earthlife.net/insects/hymenop.html#Menu

The Hymenoptera are exceedingly important insects from mans point of view for three main reasons, Firstly they include the Bees who as everybody knows make Honey and Wax, secondly because a lot of the parasites and the Ants are important enemies of crop pests, ants consume huge numbers of lepidopteran caterpillars as well as other pests and were first deliberately used to protect plants from pests in China 4 000 years ago when species of Oecophylla were encouraged to live in fruit trees because their presence was known to improve fruit yeilds. Hymenopteran parasites are regularly used in biological pest control these days and are among the first creatures screened by scientists when they are searching for a control mechanism for insect and other invertebrate pests. Thirdly and perhaps most importantly many Hymenoptera, though not the Ants are pollinators of most of our crop plants, both those we eat ourselves and those we use to feed our livestock. Because they work for free it is impossible to estimate their economic importance but it easily amounts to Billions of pounds every year. It is humbling to realise that if all the Hymenopterans were to suddenly dissappear from this earth among the numerous changes would be the collapse of human society/quote]

to paraphrase an old advertisement, Its not nice to fool mother nature.