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The "first generation" pesticides were largely highly toxic compounds, such as arsenic and hydrogen cyanide. Their use was largely abandoned because they were either too ineffective or too toxic.
The "second generation" pesticides largely included synthetic organic compounds. ('Synthetic' here means made by humans -- not naturally occurring, while 'organic' means carbon containing, not to be confused with the popular use of "organic" as in "organic farming".)
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What is the third generation of pesticides?
The third generation of pesticides are made of chemicals that break down in the environment quickly, as compared to the second and first generation which were DDT and arsenate of lead respectively.
What is an example of first generation pesticide use?
First & second generation is usually in reference to anticoagulants (rodenticide) & when product was developed. First gen is about the 40's to 60's. I have not heard the term in reference to pesticides.
What is the difference between washing powder for top loading?
You didn't add a second item to compare to. The difference between washing powder for top loading... and what ???
What did Mendel's work first and second generation mean?
In a typical Mendel experiment, Mendel took two purebreeding lines (the parental generation) and crossed them to produce the 1st filial generation and sometimes would self cross these to produce the 2nd filial generation.
What iis the difference between 2ndand 3rd degree burns?
Second degree causes blisters. Third degree will char your skin.
What is the third generation of pesticides?
The third generation of pesticides are made of chemicals that break down in the environment quickly, as compared to the second and first generation which were DDT and arsenate of lead respectively.
What is the major difference between first generation and second generation languages?
The difference between the two are that one has hispanic babies and the other is a fat cow.
What is the difference between the pollination in the first generation and the second generation?
I'm not sure of my answer but first one was natural and the second one is selective breeding.
What is the difference between an iTouch 8g 1st generation and an iTouch 8g second generation?
Well, the 2nd generation version is thinner, and that's about it!
What is the difference between core i3 ist gen and second gen?
2nd generation i3 was developed in 2nd Generation and 3rd Generation are developed in 3rd Generation..... :) lol
What is the difference between the iPod Touch 1st and second generation?
well the 2nd generation has built in speakers, youtube, access to email, and a bunch of other crap.
What is the difference in Pokemon moves from first generation to second generation?
Porn babies
What is the relationship between myself and my second cousin's grandson?
You and your second cousin share a common great grandparent. There is a difference of two generation between the grandchild and you. That would make you second cousins twice removed.
What is the difference between and iPod Touch first and second generation?
Well, mainly its just an updated version and 1st generation doesn't have built-in speakers like the 2nd does.
What is the difference between an apple iPod Nano 8gb second generation and an apple iPod Nano 8gb third generation?
There is no 8GB 2nd generation ipod nano it only went to 4GB but 3rd generation had video.
Ipod touch 1st and 2nd generation difference?
the second generation is thinner and has better software
Difference between first generation itouch and second generation itouch?
The 1st generation has a box shaped outershell while the 2nd generation has a more comfortable curved grip. The biggest difference is that the 2nd generation has external speakers that can be adjusted with the external volume control. The first generation does not. There are also minor changes like better graphics and a wider variety of apps.
