。
The rice crop is poor this year.
Literal
Rice-production [topic-は] this-year [topic-は] poor-harvest is.
米作 is 'rice production/cultivation,' a key term in Japan's agricultural vocabulary given rice's central role in the economy and culture. 凶作 means 'bad harvest/crop failure' — the direct antonym of 豊作 ('bumper crop'). Note the double は: 米作は sets the overall topic, 今年は narrows to a temporal frame ('this year specifically').