Apple farmers are currently having a very difficult time with pesticide-resistant insects. these insects are no longer being killed by the current chemical treatments, thus causing a lot of damage to the apple crops. in reaction to this, researchers are developing newer and stronger chemicals to control the bugs. why are the apple farmers seeing these new, stronger bugs?

The farmers are seeing stronger bugs because not all bugs die to the amount of pesticide. Some areas are not spreaded evenly or some bugs are more resistant genetically. The ones that are not killed by the pesticide reproduce and pass that trait onto other bugs. One into ten, ten into hundred, etc. This makes the current pestcide useless and the need to find a stronger or different pesticide. This is why some farmers rotate crops and pestcide used.

An autotrophic protist - they can perform photosynthesis and mainly consist of unicellular algae. they can be divided into number of systematic group according to the shape of their cell and the type of photosynthetic pigments they use.