Griffin Greenhouse and Nursery Supplies, Inc.
Rick Yates, Technical Support Manager
ryates@griffinmail.com |
| |
|
|
| |
| With the loss of some tried and true pesticides from our arsenal more pressure has been placed on the existing chemistry. Resistance to various insecticides, fungicides and herbicides has caused us to re-evaluate our pest management programs with an eye towards fine-tuning them for maximum effectiveness and wise stewardship of the active ingredients. |
| It has never been more important to insure that the chemical applications we make are as effective as possible. Most pesticides are expensive and our time is valuable. Each pesticide application needs to be made under conditions that will yield maximum control. An area that deserves more attention is the effect that water quality has on the efficacy of many pesticides. The pH and hardness (calcium and magnesium content) of the water source used for spraying pesticides can have a significant effect on the ability of certain products to do their jobs. Hydrolysis is the term used to describe the process that begins to degrade pesticides after they are added to water. For most pesticides this process is accelerated by high pH water. In some cases this decrease in activity happens quickly. |
| pHase5 is a recent addition to our product line and addresses the most serious obstacles your water can create, and does so in a unique way. It utilizes a color change to indicate the changes in pH that are taking place as you ad the product. If your goal is pH of 5 add product until the water turns pink or red (depending on the hardness of your water). A pH of 6.0 is satisfactory for many pesticides and can be achieved by just adding enough pHase5 to cause the spray water to turn orange. pHase5 also negates the effects of high calcium and magnesium associated with hard water sources. The harder the water source the more product it takes to achieve the desired pH and pHase5 takes the guess work out of the process with the easily observable color change. This process should take place before the chemical is added to the spray tank. |
Additional benefits from pHase5:
- Contains a surfactant to reduce surface tension increasing pesticide coverage and decreasing visible residue from wettable powders.
Caution: Do not additional surfactant if you are already using pHase5 as this could cause a phytotoxic reaction.
- Aids in compatibilities of tank mixes. (Test all tank mixes for safety before wide scale use and never attempt tank mixes forbidden on the pesticide label.)
|
| Not all pesticides react the same to the pH of the spray water solution. Listed below are some products that Griffin sells that either should not be used with pHase5 or require a lower rate for maximum performance. |
Products that should not be used with pHase5:
Fungicides- Daconil Ultrex, Daconil Weather-stik, Eagle, Medallion, Milstop, Pathguard, Phyton-27, Systhane
Herbicides- Basagran T&O, Scythe
Insecticides- Citation, Conserve, Endeavor, Thiodan (Thionex) WP and EC |
Products that should be used with pHase5 only down to pH 6.0
(color change to orange):
Fungicides- Aliette, Camelot, Chipco 26GT, Cleary's 3336 F and WP, Junction DF, Kocide 2000, Sextant, Spectro WDG
Herbicides- Pennant, Touchdown Pro
Insecticides- Avid, M-Pede, OHP Insecticidal soap |
For additional information on pHase5, feel free to read through a Griffin Gazette article showcasing pHase5, or to download more information in PDF format. |
The chemical companies listed provided the pH information for their products. |
| FUNGICIDES |
| CHEMICAL |
COMPANY |
OPTIMUM SPRAY WATER pH |
COMMENTS |
| Aliette |
Bayer |
6.0 |
-- |
| Camelot |
Whitmire |
6.0 or higher |
-- |
| Captan 50WP |
UPA Northwest |
5.5 - 7.0 |
-- |
| Chipco 26019 |
Olympic |
4.5-8.0 |
-- |
| Chipco GT |
Bayer |
7 |
Higher pH degrades product lower pH will extend it's half life |
| Cleary 3336-F |
Cleary |
6.0 - 7.0 |
pH of less than 7.5 is OK |
| Cleary 3336-WP |
Cleary |
6.0 - 7.0 |
pH of less than 7.5 is OK |
| Compass 50 WG |
Olympic |
3.0 - 7.0 |
-- |
| Concorde DF |
Griffin LLC |
pH not a factor |
Not affected by pH |
| Concorde SST |
Griffin LLC |
pH not a factor |
Not affected by pH |
| Contrast 70 WSP |
Scotts |
5.0 - 8.0 |
-- |
| Cygnus WDG |
Scotts |
5.0 - 7.0 |
-- |
| Daconil Ultrex |
Syngenta |
6.5 - 7.5 |
-- |
| Daconil Weather-Stik |
Syngenta |
6.5-7.5 |
-- |
| Decree 50 WDG |
Sepro |
5.5 - 6.5 |
Not critical, avoid high pH |
| Eagle |
Dow |
6.5-7.5 |
-- |
| Fenstar |
Olympic |
4.5-8.0 |
-- |
| Fungo Flo |
Scotts |
5.0 - 8.0 |
-- |
| Junction DF |
Griffin LLC |
6.0 or higher |
-- |
| Kocide 2000 |
Sepro |
6.5-7.5 |
-- |
| Medallion 50 WP |
Syngenta |
7.0 - 8.0 |
-- |
| Milstop |
Bioworks |
8 |
Buffered to approx. 8.1 and should not be mixed with an acid or in a solution that has buffering capacity in the acidic range |
| Pathguard |
Whitmire |
6.5 - 7.5 |
-- |
| Pentathlon 37% |
Griffin LLC |
pH not a factor |
Not affected by pH |
| Phyton 27 |
Source Tech Bio |
6.5 |
Both spray and dip |
| Pipron |
Sepro |
5.5 - 6.5 |
Not critical, avoid high pH |
| PlantShield |
Bioworks |
4.0 - 8.0 |
-- |
| Plantvax 75W |
Cromptons |
5.0 - 7.0 |
Hydrolyzes @ pH 7 - 9 |
| Protect TO |
Cleary |
pH not a factor |
Chemical stable between 4-8 |
| Rubigan EC |
Sepro |
5.5 - 6.5 |
Not critical, avoid high pH |
| Rhapsody |
Agraquest |
pH not a factor |
-- |
| Serenade |
Agraquest |
pH not a factor |
-- |
| Sextant |
Olympic |
6.0 - 7.0 |
-- |
| Spectro WDG |
Cleary |
6.0 - 7.0 |
pH of less than 7.5 is OK |
| Stature |
Sepro |
5.5 - 6.5 |
Not critical, avoid high pH |
| Stature DM |
Sepro |
5.5-6.5 |
-- |
| Strike 50% WDG |
Olympic |
3.0 - 7.0 |
-- |
| Sunspray Ultrafine |
Whitmire |
3.0 - 8.0 |
-- |
| Systhane |
Dow |
6.5 - 7.5 |
-- |
| Terraclor 75% WP |
Cromptons |
5.0 - 9.0 |
-- |
| Terrachlor 400 |
Cromptons |
pH not a factor |
-- |
| Terraguard |
Cromptons |
7 |
Begins to hydrolize as pH approaches 5 or 9 |
| Triact 70 |
Olympic |
3.0 - 7.0 |
-- |
| Zero Tol |
Bio Safe |
5.0 - 7.0 |
pH between 3-8 efficacy will not be significantly diminished |
| Zyban WSB |
Scotts |
5.0 - 8.0 |
-- |
Back to top
| GROWTH REGULATORS |
| CHEMICAL |
COMPANY |
OPTIMUM SPRAY WATER pH |
COMMENTS |
| A-Rest |
Sepro |
5.5 - 6.5 |
Not critical, avoid high pH |
| B-Nine |
Cromptons |
5.0 - 9.0 |
B-Nine is acidic-pH 3 |
| Bonzi |
Cromptons |
4.0 - 9.0 |
No degradation-these pH |
| Cycocel |
Olympic |
3.0 - 7.0 |
-- |
| Fascination |
Valent |
5.5 - 6.5 |
pH should never drop below 5 or raise over 7 |
| Florel |
Monterey Chemical |
5 |
Keep below 5.0 |
| Progibb |
Valent |
5.5 - 6.5 |
pH should never drop below 5 or raise over 7 |
| Sumagic |
Valent |
5.5 - 6.5 |
pH should never drop below 5 or raise over 7 |
Back to top
| HERBICIDES |
| CHEMICAL |
COMPANY |
OPTIMUM SPRAY WATER pH |
COMMENTS |
| Barricade WDG |
Syngenta |
pH not a factor |
- |
| Basagran T&O |
Micro Flo |
8.1 - 8.8 |
-- |
| Devrinol |
UAP |
5.5 - 7.0 |
-- |
| Envoy |
Valent |
5.5 - 6.5 |
pH should never drop below 5 or raise over 7 |
| Finale |
Ago Evo |
4.0-8.0 |
-- |
| Gallery 75DF |
Helena |
pH not a factor |
-- |
| Goal 2XL |
Dow |
5.0 - 8.0 |
-- |
| Lontrel |
Dow |
5.0-9.0 |
-- |
| Manage 75%WDG |
Monsanto |
5.0 - 7.0 |
Not to be used w/ hard water. Needs to be less than 500 ppm Ca, Mg, & Fe |
| Oryzalin 4 Pro |
Vegetation Manage LLC |
5.0 - 7.5 |
-- |
| Pendulum EC |
UAP Northwest |
5.5 - 7.0 |
-- |
| Pendulum WDG |
UAP |
5.5 - 7.0 |
-- |
| Pennant |
Syngenta |
6.0 - 7.5 |
-- |
| Pennant Magnum |
Syngenta |
pH not a factor |
-- |
| Predict |
Helena |
pH not a factor |
-- |
| Reward |
Syngenta |
pH not a factor |
-- |
| Roundup Pro Dry |
Monsanto |
5 |
pH range between 5.0 -- 7.0 is OK |
| Roundup Pro 41% |
Monsanto |
5 |
pH range between 5.0 -- 7.0 is OK |
| Scythe |
Dow |
6.5 - 7.5 |
-- |
| Sureguard |
Valent |
pH not a factor |
-- |
| Touchdown Pro |
Syngenta |
6.0 - 7.5 |
-- |
Back to top
| INSECTICIDES |
| CHEMICAL |
COMPANY |
OPTIMUM SPRAY WATER pH |
COMMENTS |
| Adept |
Cromptons |
5.0 - 9.0 |
Stable between 5--9 |
| Akari |
Sepro |
5.5 - 6.5 |
Not critical, avoid high pH |
| Avid |
Syngenta |
6.0 - 7.0 |
-- |
| Azatin |
Olympic |
3.0 - 7.0 |
-- |
| Botanigard |
Whitmire |
3.0 - 7.8 |
-- |
| Cinnamite |
Whitmire |
not avail. |
-- |
| Citation |
Syngenta |
6.5 - 7.0 |
-- |
| Closure |
Scotts |
5.0 - 8.0 |
Closure opt. Is below 8 |
| Conserve |
Dow |
6.5 - 7.5 |
-- |
| Decathlon |
Olympic |
3.0 - 7.0 |
-- |
| Discus |
Olympic |
3.0 - 7.0 |
-- |
| Distance |
Valent |
5.5 - 6.5 |
pH should never drop below 5 or raise over 7 |
| Duraguard ME |
Whitmire |
3.0 - 9.0 |
-- |
| Endeavor |
Syngenta |
7.0 - 9.0 |
Rapidly degrades at low pH |
| Enstar II |
Lynx |
pH not a factor |
-- |
| Floramite |
Cromptons |
< 9.0 |
-- |
| Hexygon DF |
Gowan |
5.0 - 9.0 |
-- |
| Judo |
Olympic |
3.0-7.0 |
-- |
| Kelthane |
Prosourse One |
5.0 - 7.0 |
-- |
| M-pede |
Dow |
6.5 - 7.5 |
-- |
| Marathon II |
Olympic |
3.0 - 7.0 |
-- |
| Mavrik |
Lynx |
5.0 - 7.0 |
-- |
| Mesurol 75 WP |
Gowan |
5.0 - 9.0 |
-- |
| OHP Insecticidal Soap |
Olympic |
6.5 - 7.5 |
Calcium, magnesium and iron cause precipitate- pure water (low EC) is best |
| Ornazin |
Sepro |
5.5 - 6.5 |
Important to avoid high pH |
| Orthene |
Valent |
5.5 - 6.5 |
pH should never drop below 5 or raise over 7 |
| Ovation SC |
Scotts |
5.0 - 8.0 |
-- |
| Pedestal |
Cromptons |
< 9.0 |
-- |
| Pylon |
Olympic |
3.0 - 7.0 |
-- |
| Pyreth-it |
Whitmire |
3.0 - 8.0 |
-- |
| Sanmite 75% WSB |
Scotts |
5.0 - 8.0 |
-- |
| Scimitar |
Syngenta |
7.0 |
-- |
| Sunspray Ultrafine |
Whitmire |
-- |
-- |
| Synergy Oil |
Brant |
pH not a factor |
Not pH dependant |
| Talstar GH |
Whitmire |
4.0 - 9.0 |
-- |
| Talstar N |
Whitmire |
4.0 - 9.0 |
-- |
| Talus |
Sepro |
5.5-6.5 |
-- |
| Tame |
Valent |
5.5 - 6.5 |
pH should never drop below 5 or raise over 7 |
| Thiodan (Thionex) WP |
FMC |
7.0 |
Higher pH degrades product
Lower pH will extend its half life |
| Thiodan (Thionex) EC |
FMC |
7.0 |
Higher pH degrades product
Lower pH will extend its half life |
| Triact 70 |
Olympic |
3.0 - 7.0 |
-- |
| Tristar |
Cleary's |
5.0-9.0 |
-- |
|
|
Back to Technical Bulletins
