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1- The power of four...
Four leaf clover has a sort of propeller shaped leaves... this make it easier for the leaves to wave in the wind since this compact lump is heavier than three leaf clover. And why is it important to clover to wave in the wind? If you look carefully, you see a V-shape pattern on each leaf, which look a bit similar to birds at distance in the air.
When insects approach, they discover the V-shape patterns and try to avoid the (animated) leaves. So they won't lay eggs there (to develop leaf eating worms). If a farmer get propeller like leaves of paper also with a similar V-shape pattern around his crop, his crop will be more left alone from insects, I guess.
2- BUurrr... ("goodbye to Summer..." "...seal it with a kiss" - Hyland)
One most likely reason why the leaves turn reddish is to gradually prepare for winter. It's more cost effective to have the left green (wind and cold protected) leaves to gather the increasing weaker sunlight to produce some nutrition still, while the more cold exposed, reddish leaves don't draw cold nutrition to the three (or plant) - which might be harmful. So it's a bit like us humans - we more likely get a cold when fall is at our doorstep (aaatschooo!).
1 comment:
About 1 - the egglaying insects may believe that clovers with V-sign have already another egg laying insect there, so they will travel to other plants (some worms eat other insect eggs).
This is parallell with leaves that have texture with spots that are similar to some insect eggs.
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