Method of utilizing seedling growing greenhouse to propagate harmonia axyridis in large number
A heterochromia, a large number of technologies, applied in the field of a large number of multicolored ladybugs, can solve the problems of restricting heterochromia, aphid breeding difficulties, large labor input, etc., to save breeding costs, reduce feeding costs, cost saving effect
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Embodiment 1
[0021] Embodiment 1: a kind of method of the present invention utilizes seedling-growing greenhouses to multiply Heterochromia in a large number, comprises the following steps:
[0022] a. Tobacco seeding: Tobacco seedlings are produced on a large scale using seedling raising materials in the seedling cultivation workshop. The sowing arrangement on the seedling raising floating tray with 9 rows and 17 columns and a total of 153 holes is 4 rows and 8 columns; , do not sow in rows and columns, 32 holes are sown in each plate, 4 rows and 8 columns;
[0023] b. Aphids inoculation: start to inoculate the tobacco seedlings at the three-leaf and one-heart stage, inoculate 3 senior-age aphids on each tobacco seedling, and inoculate 90 heads on each seedling tray; after one week, observe the growth of the aphis Carry out supplementary inoculation where the inoculation is unsuccessful;
[0024] c. Ladybug inoculation: 20 days of multiplication of aphids, when the number of aphids per p...
Embodiment 2
[0028] Embodiment 2: a kind of method of the present invention utilizes seedling-growing greenhouses to proliferate Heterochromia in a large number, comprises the following steps:
[0029] a. Tobacco seeding: Tobacco seedlings are produced on a large scale using seedling raising materials in the seedling cultivation workshop. The sowing arrangement on the seedling raising floating tray with 9 rows and 17 columns and a total of 153 holes is 4 rows and 8 columns; , do not sow in rows and columns, 32 holes are sown in each plate, 4 rows and 8 columns;
[0030] b. Aphids inoculation: start to inoculate the tobacco seedlings at the three-leaf and one-heart stage, inoculate 3 senior-age aphids on each tobacco seedling, and inoculate 110 heads on each seedling tray; after one week, observe the growth of the aphis Carry out supplementary inoculation where the inoculation is unsuccessful;
[0031] c. Ladybug inoculation: 20 days of multiplication of aphids, and when the number of aphi...
Embodiment 3
[0035] Embodiment 3: a kind of method of the present invention utilizes seedling-growing greenhouses to proliferate Heterochromia in a large number, comprises the following steps:
[0036]a. Tobacco seeding: Tobacco seedlings are produced on a large scale using seedling raising materials in the seedling cultivation workshop. The sowing arrangement on the seedling raising floating tray with 9 rows and 17 columns and a total of 153 holes is 4 rows and 8 columns; , do not sow in rows and columns, 32 holes are sown in each plate, 4 rows and 8 columns;
[0037] b. Aphids inoculation: start to inoculate the tobacco seedlings at the three-leaf and one-heart stage, inoculate 3 senior-age aphids on each tobacco seedling, and inoculate 100 heads on each seedling tray; Carry out supplementary inoculation where the inoculation is unsuccessful;
[0038] c. Ladybug inoculation: 20 days of propagation of aphids, and when the number of aphids per plant is 200, start to inoculate the newly ha...
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