If you refer to a situation or place as a breeding groundfor something bad such as crime, you mean that this thing can easily develop in that situation or place.
Flaws in the system have created a breeding ground for financial scandals. [+ for]
2. countable noun
The breeding groundfor a particular type of creature is the place where this creature breeds easily.
Warm milk is the ideal breeding ground for bacteria.
breeding ground in British English
(ˈbriːdɪŋ ɡraʊnd)
noun
1.
a place or situation that favours the development of something
The system is, unsurprisingly, a breeding ground for corruption.
Flaws in the system have created a breeding ground for financial scandals.
Historically, St Benedict's is a breeding ground for talent.
2.
a place or area that enables a certain kind of organism to multiply
Warm milk is the ideal breeding ground for bacteria.
workers whose vile living conditions were a breeding ground for germs
The stagnant pond is a breeding ground for mosquitoes.
breeding ground in American English
1.
a place where many animals of a specified kind breed
swamps are breeding grounds for mosquitoes
2.
a place, condition, etc. that fosters some activity, idea, etc.
Examples of 'breeding ground' in a sentence
breeding ground
Perhaps there was some kind of farm attached to it that Max had been interested in, some breeding ground for new species.
Appiganesi, Lisa DREAMS OF INNOCENCE (2002)
What is critical about the time I spent there is that it was the breeding ground of my addiction.
Shell, Ray ICED (2002)
Which, as we know, is always a good breeding ground for the more sophisticated sorts of crime!
Val McDermid THE LAST TEMPTATION (2002)
'Makes a good breeding ground ,' I said and tried a short laugh.