cross-pollinate vs fertilise

cross-pollinate and fertilise both are verbs.

Word	Noun	Adjective	Verb	Adverb
cross-pollinate	No	No	Yes	No
fertilise	No	No	Yes	No

As verbs, fertilise is a hypernym of cross-pollinate; that is, fertilise is a word with a broader meaning than cross-pollinate:

Other hypernyms of cross-pollinate include fecundate, fertilize, inseminate.

cross-pollinate (verb)	fertilise (verb)
fertilize by transferring pollen	introduce semen into (a female)
	provide with fertilizers or add nutrients to
	make fertile or productive