Quantcast Section II. Pesticide Mixing Calculations - Pesticides in the Military

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
Section II. PESTICIDE MIXING CALCULATIONS
2-9.
IMPORTANCE OF ACCURATE CALCULATIONS
It is difficult to overemphasize the importance of making accurate calculations
each time a pesticide is mixed. There are several reasons for emphasizing this
importance.
a.  Safety. If a formulation is prepared with too high a working concentration,
human lives and other nontarget organisms may be endangered.
b.  Effectiveness. If a formulation has too low a working concentration, the
control program may be a failure and insects may develop resistance to the pesticide.
In addition, a repeat application may be necessary, thereby increasing the total
exposure to humans and other nontarget animals.
c.
Economy. Pesticide concentrates are expensive. If calculations in mixing
are not precise, not only do we run the risks cited in paragraphs a and b above, but we
also may needlessly waste toxic materials. Although the cost may not be great for any
one given error, the cumulative expense due to error may be enormous on an Army-
wide basis.
2-10. WEIGHT/WEIGHT OR VOLUME/VOLUME CALCULATIONS
a.  General. If we were mixing pure technical grade toxicants with diluents,
mixing problems would be simple. We would merely have to mix, for example, 2
pounds of toxicant with 98 pounds of diluent (or 2 gallons with 98 gallons) to obtain a 2
percent mixture. In practice, however, our calculations are never quite so simple. We
are not necessarily mixing 100 pound or 100-gallon quantities, and our concentrates are
never 100 percent pure. Therefore, we use formulas that simplify our work as much as
possible. In order to use the formula, there are certain basic elements of information we
must have. The following must be obtained from the pesticide label:
(1) The name of the active ingredient (toxicant), its concentration, and its
form (carbaryl, 80% powder; malathion, 95% solution concentrate; etc.).
(2) The type formulation to be prepared (dust solution, emulsion, etc.) and
the diluent to be used.
(3) The concentration of toxicant desired in the final formulation (1%, 2%,
05%, etc.).
(4) The quantity of final formulation required (5 gallons, 100 pounds, etc.).
MD0173
2-7



Medical News
Nocturnal GERD tied to non-infectious rhinitis
(HealthDay)—Nocturnal gastroesophageal reflux disease (GERD) appears to be a risk...
medicalxpress.com
Early palliative care improves survival in advanced cancer
(HealthDay)—Early initiation of palliative care (PC) interventions improves survival and...
medicalxpress.com
Physician/Pharmacist model can improve mean BP
(HealthDay)—A physician/pharmacist collaborative model can improve mean blood pressure (BP),...
medicalxpress.com
Innovative prototype presented for post-ICU patients
(HealthDay)—A collaborative care model, the Critical Care Recovery Center (CCRC),...
medicalxpress.com
E-cigarettes may pose a risk in pregnancy and to children
(HealthDay)—Nicotine exposure from e-cigarettes may damage the developing brains of...
medicalxpress.com
Vitamin D Won't Diminish Interferon-Inducible Gene Expression in SLE (CME/CE)
(MedPage Today) -- Supplements don't affect gene expression in lupus...
medpagetoday.com
For drivers with telescopic lenses, driving experience and training affect road test results
For people with low vision who need bioptic telescopic glasses...
medicalxpress.com
Kidney patients living longer on dialysis, study shows
(HealthDay)—New statistics suggest that kidney patients on dialysis are surviving...
medicalxpress.com
Study provides evidence against the fetal origins of cancer and cardiovascular disease
A study by researchers at Columbia University's Mailman School of...
medicalxpress.com
Death, Hospitalization Rates Falling for Dialysis Patients (CME/CE)
(MedPage Today) -- But mortality risk for incident patients remains...
medpagetoday.com
Love the cook: Attraction to comfort food linked to positive social connections
A big bowl of mashed potatoes. What about spaghetti and...
medicalxpress.com
Global CVD Risk Calculator Predicts Risk by Country (CME/CE)
(MedPage Today) -- Tool could extend risk-based treatment to more...
medpagetoday.com
Researchers discover how body's good fat tissue communicates with brain
Brown fat tissue, the body's "good fat," communicates with the...
medicalxpress.com
Depression, suicide and the workplace - Q&A
Expert opinions on the potential link between depression and the...
medicalxpress.com
After work, a Stanford surgeon brings stones to life
Classrooms, research, grant writing, faculty meetings… It can be easy...
scopeblog.stanford.edu
Tweet of the Week: 'Get Some Patients'
(MedPage Today) -- Clip from 1980s BBC show 'Yes, Minister'...
medpagetoday.com
Google teams with J&J on robotic surgery
US health care giant Johnson & Johnson announced plans Friday...
medicalxpress.com
Dialysis and Phosphorus: Does Race Matter? (CME/CE)
(MedPage Today) -- Two studies of phosphorus levels by race...
medpagetoday.com
UK nurse cured of Ebola after receiving new treatment
A British army reservist who contracted Ebola while working as...
medicalxpress.com
Is painful knee and hand osteoarthritis in women associated with excess mortality?
Research looking at risk of early mortality of British middle-aged...
medicalxpress.com
 


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +