Not everyone who makes scientific pronouncements is pronouncing scientific truth.
I take it that your point is that Lysenko, a prominent Soviet scientist of the early 20th century, was later exposed to be a fraud, to be doing bad science.
My rebuttal is that his work was exposed as fraudulent by his peers. Science moves on. He was a fly on the windshield, or to use another insect metaphor, a bug in the program that was identified and removed.