I did not mean to turn this into a debate I just wonder if using living things in a non-organic environment is as effective? Too high salt concentrations inhibit bacteria and fungi growth, that's a fact...
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Grandevo microbial-based insecticide
- Thread starter Nader
- Start date
I did not mean to turn this into a debate I just wonder if using living things in a non-organic environment is as effective? Too high salt concentrations inhibit bacteria and fungi growth, that's a fact...
You can get this and other OMRI listed products at Everwood Farm:
http://www.everwoodfarm.com/Natural...e_Controls/Organic_Pesticides_Pest_Management
Foreverfamily
Member
whats the dosage for foliar spraying with grandevo?
does 1/4 ounce per gallon seem ok?
does 1/4 ounce per gallon seem ok?
I believe GRANDEVO is a different strain: Chromobacterium subtsugae strain PRAA4-1, than what was used in the IR-4 report: strain NRRL B-30655. According to a couple of Organic commercial Ag guys I have talked to, they are chalk and cheese. I use it in rotation with PFR-97 (since it came out in 2013) and love it. Along with my usual rotation of A.swirskii with A.californicus and/or A.cucumeris a couple times in late veg, I am pest free.
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.322.1257&rep=rep1&type=pdf
The different numbers are just from different collection centers catalog systems.
NRRL
DSM
http://www3.epa.gov/pesticides/chem_search/reg_actions/registration/decision_PC-016329_27-Sep-11.pdf
The different numbers are just from different collection centers catalog systems.
NRRL
DSM
http://www3.epa.gov/pesticides/chem_search/reg_actions/registration/decision_PC-016329_27-Sep-11.pdf
Attachments
Grandevo and PFR 97 dilution rates
Grandevo and PFR 97 dilution rates
I asked the same question. Got this response back from Everwood Farm:
One other thing I found with Grandevo is the length of the light cycle: apparently it dissipates with photosynthesis so when I am running a 24 hour cycle, I apply every 4 days, and every 7-8 days in 12 hour.
Grandevo and PFR 97 dilution rates
I asked the same question. Got this response back from Everwood Farm:
One other thing I found with Grandevo is the length of the light cycle: apparently it dissipates with photosynthesis so when I am running a 24 hour cycle, I apply every 4 days, and every 7-8 days in 12 hour.
Bongstar420
Member
Medical significance
C. violaceum rarely infects humans, but when it does it causes skin lesions, sepsis, and liver abscesses that may be fatal.[7] The first reported case of chromobacterium violaceum infection in humans in literature is from Malaysia in 1927.[1] Only 150 cases have been reported in literature since then.[8] To date, cases have been reported from Argentina, Australia, Brazil, Cuba, India,Japan, Nigeria, Singapore,Sri Lanka, Taiwan, United States and Vietnam. The commonest mode of entry of the bacteria into the body is through the injured skin coming in contact with soil or water containing the bacteria.[9][1] The disease usually starts as a limited infection of the skin at the point of entry of the bacteria, which progresses to necrotizing metastatic lesions, then multiple abscesses of the liver, lung, spleen, skin, lymph nodes or brain, leading to severe septicaemia, culminating in multiorgan failure which may be fatal.[10] Other reported pathologies include chronic granulomatosis, osteomyelitis, cellulitis, diarrhoea, septic spondylitis, conjunctivitis, periorbital and ocular infection.[1][11][12][13][14]Care must be taken because Burkholderia pseudomallei is commonly misidentified as C. violaceum by many common identification methods.[15][16] The two are readily distinguished because B. pseudomallei produces large wrinkled colonies, whereas C. violaceum produces a distinctive violet pigment.
I don't know why this pesticide and others are marketed for Strawberry growers....is this in California or something because here in Oregon, mite are almost never a real problem as N. fallacis does the job almost all of the time....that is according to my boss who was an IPM adviser for 30 years in the Willamette valley. We watched numerous fields and did not spray any of them. I would count 1000 per leaf on occasion only to watch N. fallacis decimate those numbers the following month. I used N. fallacis from such Strawberry fields to successfully control mite on Crocromisia x crossifolia, an invasive plant which only gets ugly from mite but is straight up a magnet for them. I doubt a Cannabis field will ever see sole predator mite control.
Now hops, well the mite are like borg on those. Sprays are unavoidable even with high N. fallacis populations.....I suspect inter planting pollen donors significantly increases N. fallacis efficacy in hops though as the only field I saw with flowering buckwheat got through with one early season spray- wish I coulda seen the following year though. That grower wanted to hire me to their hops research plot. I declined because I don't own the ground and that would never be offered to me. I figure, the owner can do the job fine if they deserve their land. Owners that deserve their lot in life don't need anything but labor and access to research data bases.
C. violaceum rarely infects humans, but when it does it causes skin lesions, sepsis, and liver abscesses that may be fatal.[7] The first reported case of chromobacterium violaceum infection in humans in literature is from Malaysia in 1927.[1] Only 150 cases have been reported in literature since then.[8] To date, cases have been reported from Argentina, Australia, Brazil, Cuba, India,Japan, Nigeria, Singapore,Sri Lanka, Taiwan, United States and Vietnam. The commonest mode of entry of the bacteria into the body is through the injured skin coming in contact with soil or water containing the bacteria.[9][1] The disease usually starts as a limited infection of the skin at the point of entry of the bacteria, which progresses to necrotizing metastatic lesions, then multiple abscesses of the liver, lung, spleen, skin, lymph nodes or brain, leading to severe septicaemia, culminating in multiorgan failure which may be fatal.[10] Other reported pathologies include chronic granulomatosis, osteomyelitis, cellulitis, diarrhoea, septic spondylitis, conjunctivitis, periorbital and ocular infection.[1][11][12][13][14]Care must be taken because Burkholderia pseudomallei is commonly misidentified as C. violaceum by many common identification methods.[15][16] The two are readily distinguished because B. pseudomallei produces large wrinkled colonies, whereas C. violaceum produces a distinctive violet pigment.
I don't know why this pesticide and others are marketed for Strawberry growers....is this in California or something because here in Oregon, mite are almost never a real problem as N. fallacis does the job almost all of the time....that is according to my boss who was an IPM adviser for 30 years in the Willamette valley. We watched numerous fields and did not spray any of them. I would count 1000 per leaf on occasion only to watch N. fallacis decimate those numbers the following month. I used N. fallacis from such Strawberry fields to successfully control mite on Crocromisia x crossifolia, an invasive plant which only gets ugly from mite but is straight up a magnet for them. I doubt a Cannabis field will ever see sole predator mite control.
Now hops, well the mite are like borg on those. Sprays are unavoidable even with high N. fallacis populations.....I suspect inter planting pollen donors significantly increases N. fallacis efficacy in hops though as the only field I saw with flowering buckwheat got through with one early season spray- wish I coulda seen the following year though. That grower wanted to hire me to their hops research plot. I declined because I don't own the ground and that would never be offered to me. I figure, the owner can do the job fine if they deserve their land. Owners that deserve their lot in life don't need anything but labor and access to research data bases.
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TheOutlawTree
Active member
A friend of myne was telling me about grandevo the other day, he said it really works, even on broads / russets.
I'm going to include grandevo in my IPM this season.
I'm going to include grandevo in my IPM this season.
4-hour REI
Minimal personal protective equipment (PPE) requirements
Can be used up to the day of harvest without concern for residues …
0-day PHI
MRL tolerance exemption
Still. I personally don't like to spray anything after week 3 on 10 week cultivars.
JayTrinity
Member
ANy one have any more thoughts?
I just got a 5lb bag, they said Venerate in rotation.
I just got a 5lb bag, they said Venerate in rotation.
dricks7321
New member
Higher Brix does = less susceptibility to such issues. 50+ strains I work with, some have higher brix than others. Less brix are more likely to be affected by mites etc in my experience and from the information I received from a scientific studies that were performed in the Netherlands.
