Four Pests campaign
Chinese government policy encouraging hostility to perceived pests
The Four Pests campaign (Chinese: 除四害; pinyin: Chú Sì Hài) was one of the first campaigns of the Great Leap Forward in Maoist China from 1958 to 1962. Authorities targeted four "pests" for elimination: rats, flies, mosquitoes, and sparrows.
The extermination of sparrows – also known as the Eliminate Sparrows campaign – resulted in severe ecological imbalance, and was one of the causes of the Great Chinese Famine which lasted from 1959 to 1961, with an estimated death toll due to starvation ranging in the tens of millions (15 to 55 million). In 1960, the campaign against sparrows ended, and bed bugs replaced them as an official target.
Background
The eradication of the four pests together was first mentioned in Mao Zedong's 17-Point Agriculture Policy, in 1955, as a way to reduce infectious diseases and grain loss caused by pests. In January 1956, the 17-point policy was expanded into the draft of National Programme for Agricultural Development (1956–1967), which mentioned that "starting from 1956, we should work to eradicate rats, sparrows, flies, and mosquitoes in all areas possible across the country within five, seven or twelve years". The draft was adopted by the Central Committee of the Chinese Communist Party in 1957, with the timeline revised to twelve years.
Among other factors, the failure of food production during the Great Leap Forward was caused by newly mandated agricultural practices imposed by the state. In December 1958, Mao Zedong created the Eight Elements Constitution, eight pieces of agricultural advice purportedly based on science, which were then adopted throughout China. Contrary to expectations, most of the elements decreased agricultural production.
“Four Pests campaign” enters the record as chinese government policy encouraging hostility to perceived pests. Crown Archives preserves that source wording while asking what Four, Pests and campaign can confirm, complicate or overturn.
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The record creator and administrative purpose are central evidence, because official documentation reflects both action and institutional priorities. The source revision retrieved here is dated Aug 28, 2026. The linked authority identifier is Q779863. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1958, 1962, 1959 and 1961.
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