Method for refrigerated storage of heterorhabditis bacteriophora entomopathogenic nematodes in cold areas
A technology of entomopathogenic nematodes and storage methods, which is applied in the field of variable temperature and frozen storage of bacteriophage Heterobacillus entomopathogenic nematodes in cold regions, can solve the problems of short storage period, difficult long-distance transportation, weak pathogenicity, etc., and achieve good results Effect
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specific Embodiment approach 1
[0015] Specific embodiment 1: The specific operation steps of this embodiment for the frozen storage method of bacterophilic Heterobacteriaceae entomopathogenic nematodes in cold regions are as follows:
[0016] Step 1. Prepare the storage medium and storage bag: the storage medium is vermiculite, pass the vermiculite through a 40-60 mesh sieve, remove the fines, keep the ventilation, then sterilize with damp heat at 121°C for 25-30min, add water to the vermiculite water content 45-60%; the storage bag is 80-100 mesh nylon mesh bag, the size is 10×20cm, put the storage medium into the storage bag;
[0017] Step 2, inoculation: inoculate the entomopathogenic nematode (infection stage larvae IJs) of the newly propagated entomopathogenic nematodes (infection stage larvae IJs) stored at 10°C into the storage medium vermiculite; press 10 4-5 The dose of IJs / g vermiculite inoculates the larvae of the infection stage;
[0018] Step 3. Variable temperature frozen storage: Put the ino...
specific Embodiment approach 2
[0021] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the vermiculite in step 1 passes through a 50-mesh sieve. Other steps and parameters are the same as those in Embodiment 1.
[0022] of this embodiment
specific Embodiment approach 3
[0023] Embodiment 3: This embodiment is different from Embodiment 1 in that the nylon mesh bag in step 1 is 80 mesh. Other steps and parameters are the same as those in Embodiment 1.
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