Does anyone know why a wasp cannot get out of a wasp trap by flying down and out ? They can fly downwards.
By Walter
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I looked up wasp traps on google and found many sites that shows how to make a trap. One site had pictures. They used a clear plastic bottle and cut the top off. Then inverted the cut off top and stapled to the bottle. Pour some product into the bottle to attracts wasps and hang from a tree.
The wasp enter the trap from the top, not the bottom. They can't figure out how to escape. Also suggested to add oil to the insides of the bottle. If the wasp try to alight on the inside of the bottle they will fall to the bottom.
I think they are just too stupid to think to do ths.
The fly into the funnel of the trap with their wings open, and land on it, then, with their wings now closed, they walk into the trap through the opening. in order for them to escape, the hole would have to be big enough for them to fly out of with their wings open, but their wing span is too wide.
2 reasons, 1st once in they are likely to drown in the water. 2nd the relatively small exit hole makes it harder (not impossible) to escape.
minnow traps use the same principal.
Insects will never attempt to escape downwards in a time of stress, they will always fly up
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