How did Xiang Zhonghuai die?

"If you are full of spring silkworms, stop collecting cocoons, and spare no effort to pay Qiao Su." Xiang Zhonghuai is the only academician of sericulture science in China so far, and the chief manager of the first animal (silkworm) genome project completed by Chinese scientists. He has built the world's largest silkworm gene bank. Now entering the octogenarian, it is still active in the national sericulture industry base. -Inscription