Picking the core is the basis for raising the silkworm. The mulberry picking core is taken from the top core buds of the mulberry branches, breaks the top edge of the mulberry branches, makes the mulberry branches concentrated supply to the leaves, promotes the maturation of the mulberry leaves, enlarges and thickens the leaves, and greatly increases the output value of the mulberry leaves, thereby enhancing Boer constitution improves disease resistance.
Affected by the cold weather in early April of this year, the growth of mulberry trees in Xinjie Town is slow, the number of leaves is small, and the leaf type is small. The majority of silkworm farmers need to raise their awareness and pick and ground the mulberry tree in an all-round way to increase the yield and quality of mulberry leaves. According to the current requirements of the silkworm varieties that are kept in Xinjie Town, the core must be picked 15 days before the leaves are used.
Spring mulberry picking should pay attention to: early picking in the 3rd instar period of small silkworm, 3 before the end of sleep, the new street in April 14 to 17 is the most appropriate picking time, picking the core when picking the top of the new mulberry leaves As one heart, picking the core in sunny days facilitates wound healing and prevents the prevalence of mulberry diseases. New Street will be postponed for 3 days than other townships in Dayao.
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