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What percentage of the world's food crops are pollinated by insects?
Wiki User
∙ 13y ago
When you consider cross-pollination, it indicates for the most part honey bees. There was a movie about bees going on strike and then all the vegetation died.
This is true! You would think that such a tiny insect wouldn't be so extemely important to life, but if they died, so would EVERYTHING else. Sometimes butterflies perform cross-pollination but then you wouldn't have the seetness of honey. (Just kidding.)
Wiki User
∙ 13y ago
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What percentage of food crops are pollinated by insects birds or mammals?
approximately 3/4 or 75%
How are vegetables and crops pollinated?
Most are pollinated by bees, but many specialised crops can be pollinated by humans.
What fraction of the worlds crops are eaten by bugs and insects?
43/100
What are the reasons why crops are normally self pollinated?
Because the majority of crops (cereal crops) are wind pollinated.
Which insect affect the crop yield?
Insects affect crop yields in several ways.Many crops, especially fruit, are insect pollinated - particularly by bees. So if there were no insects there would be no crops.Insects can damage plants and kill them, or can eat the crops, which reduces the yield.Insects can still eat crops even after they have been harvested.However, the overall contribution of insects to crops is beneficial to humans.
Why hybrids are not successful in self pollinated crops?
In self pollinated crops, hybrid vigour is not just like the cross pollinated crop e.g maize.cross pollination in self pollinated crop produce low seed set and cost of hybrid seed increases.less cytoplasmic male sterility and fertility restorer gene in mostly self pollinated crop.
What is the differences between helpfull insects and harmful insects?
Well harmfull insects are those that do damage to crops and helpfull insects are insects that help crops by either A:helping in the pollination of the crop or B: by eating or driving out those insects that are harmfull to the crops
What effect does pollen from genetically modified plants have on organically grown plants when they are cross pollinated?
When organic crops are pollinated with GMO crops, the GMO gene can become a part of the organic crop, so the organic seed for the following year contains the GMO. Technically, since organic crops are not supposed to have GMOs in them, this contaminates the organic crops.
Why does killing insects on crops increase crop yield?
the insects don't eat/ damage crops and it allows to kill insects carrying plant disease.
Do insects destroy crops?
Yes, some insects definitely do that.
What happens when most cross-pollinated crops are self-pollinated for several generations?
you'd get a uniform genetic composition for good or bad. you can get a uniform crop or you may get inbreeding problems
Why do we spray pesticides on crops?
So insects won't eat the crops.
