pullulate
/ˈpʊljʊleɪt/; /ˈpʊljʊleɪt/; /pʊˈljuːleɪt/Definitions
1. verb
to swarm or teem with insects, especially in a sudden or abundant manner
“The garden pullulated with aphids after the warm summer.”
2. verb
to swarm or abound with something, especially in a sudden or abundant manner
“The city pullulated with new businesses after the economic boom.”
3. noun
a mass or swarm of insects, especially one that teems with life
“The scientist studied the pullulate on the tree trunk.”