Home Landscaping Do You Know Your EIQs?

Do You Know Your EIQs?



Integrated Pest Management (IPM) is widely accepted as the best way to balance pest control with environmental considerations. Through IPM, pesticides are averted till monitoring, identification, historical past, and motion thresholds point out that pest management is required. At that time, an excellent IPM program evaluates the correct management technique each for effectiveness and environmental threat. However whereas information exists to measure effectiveness, how do you measure threat?EIQ


Whereas a wealth of environmental influence information is obtainable for pesticides (largely due to the registration course of), for a few years it was not organized in a significant manner. Because of this, applicators had only a few instruments to find out the bottom threat pesticide. They may be aware of sign phrases (Warning, Warning, Hazard) to attempt to make the most effective resolution, but it surely was not best. But at this time, there are strategies to assist decide the environmental influence of pesticides. One was developed by Cornell College in 1992, but few landscapers learn about it.

The Magic Components

Almost three a long time in the past, in an effort to create a uniform and extra person pleasant technique of threat analysis, scientists from the New York State Agricultural Experiment Station at Cornell College printed “A Methodology To Measure the Environmental Impression of Pesticides.” In it, they launched the Environmental Impression Quotient.

The Environmental Impression Quotient is a single quantity that charges a pesticide’s environmental influence on a scale from 6.7 to 226.7. The decrease the quantity, the decrease the environmental influence. As a regular standards, the Environmental Impression Quotient (EIQ) now permits applicators to match environmental impacts via a extra targeted lens.

But not everybody helps the concept. “There’s quite a lot of debate amongst individuals who research toxicology about synthesizing all this information into one quantity,” says Carl Schimenti, Cornell turf analysis program supervisor. “There are a whole bunch of those fashions, every weighting properties of every pesticide in another way. There’s really an excellent little bit of literature suggesting the EIQ isn’t nice, however nobody provides a greater various.”

To formulate the EIQ, Cornell scientists thought of a number of components, which might get fairly technical, however very mainly embody: toxicity, soil half-life, systemicity, leaching potential, plant floor half-life, and floor loss potential. These components are supposed to think about the general results on the applicator, shopper, and ecology. After information on all these components are collected, pesticides are grouped by class (pesticides, herbicides, and so forth.) and calculations are made. The result’s the EIQ.

So why don’t most landscapers learn about EIQ? Schimenti says it’s probably a mixture of things. For one, EIQ just isn’t a pesticide reporting requirement. Moreover, “many focus… on economics and efficacy. Including the extra variable of ‘environmental’ may be perceived as [complicating] the decision-making course of.” And whereas extension brokers are accustomed to EIQ, says Schimenti, they’re typically there to reply questions. If the questions aren’t being requested, it’s troublesome to drive training.

EIQ Use In The Area

In fact, totally different merchandise have totally different formulations. Because of this, EIQ subject use rankings (EIQ-FUR) have been developed to realize a extra correct image. In different phrases, it’s not simply the chemical itself, it’s the quantity of chemical utilized in software. So EIQ-FUR calculations additional think about: the formulation (or share of energetic ingredient) and the frequency of software. Merely multiply the EIQ of a selected chemical by the p.c energetic ingredient and by the speed used (normally in pints or kilos of product per acre.) To make clear: EIQ FUR = EIQ  x  % Lively Ingredient  x  Charge.


Fortunately, Cornell has made it simple with an internet EIQ-FUR calculator (pictured above). Simply plug in solutions for 3 easy steps and it does the mathematics. A hyperlink to the web Calculator is offered on the finish of the article on this web page.

Pesticides ought to be in contrast primarily based on the EIQ-FUR of the product solely, not by the bottom EIQ. As an example, a product could have low EIQ in comparison with others primarily based on its energetic ingredient, but when formulations are taken into consideration, it may rise increased within the ranks, or vice versa. The decrease the EIQ-FUR, the decrease the environmental influence. As one pesticide educator put it: If a pesticide is required and all else is equal, choosing the least dangerous pesticide is simple:

  • Work out what the goal pest is.
  • Decide the merchandise out there to manage the pest.
  • Plug the AI and Charge into the EIQ Calculator.

Small variations within the EIQ-FUR usually are not significant, moderately the relative stage and rating are. Cornell supplies the next information for panorama and turfgrass managers:

  • <25 very low
  • <50 low
  • 50-100 reasonable
  • >100 excessive
  • >150 very excessive

The EIQ FUR can be utilized to match totally different pest administration methods, and to match seasonal totals from 12 months to 12 months. To take action, calculate the EIQ-FUR for every software for the season and easily sum them up.

Pesticide merchandise differ in efficacy, mode of motion, potential for inflicting resistance, and value. A landscaper ought to think about all these variations when deciding on a pesticide and total administration technique. Including the environmental influence to those issues—utilizing the EIQ-FUR mannequin—merely enhances your means to make well-informed selections.

Need to know the EIQ-FUR of merchandise you employ? Or make a product comparability? Go to the Calculator for Field Use EIQ.

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