Historic, Archive Document Do not assume content reflects current scientific knowledge, policies, or practices. . Reserve “3eeey | -M9P47 1994 PESTICIDE USE ON BARLEY IN MONTANA 1994 National Agricultural Impact Assessment Program Special Project 93-EPIX-1-0135 A. Reeves Petroff and Gregory Johnson Department of Entomology Montana State University Bozeman, MT 3 ) A / ’ il i 4 » { - % we “@ ‘ f " ’ : f 4 ' i } 7 es A at, i Ry . : ‘ i? ot‘s4 ‘ae e baagie! vsm)P si)p . ah . > ‘ ame eae 0 Pg *= Athy fogs a Np ; bes! 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E7 .\@ Mii e(a y_? a 7% ; \ t? ytt m “a Forward This pesticide survey was conducted to obtain information on types of pesticides applied to barley grown in Montana during 1994. It is probable that not all pesticides used on barley in 1994 were detected by this survey, primarily because of the limited response. For this reason, readers should not consider the information in this survey all inclusive. Rather, the information will serve as baseline data for making future comparisons on pesticides used in Montana. : ; ari veld of bolloge eabisiesg'l c wiggino notnoemitms ocf btelsluhao o eae ge shis7t he ta 9p eid vd bomewsh sige SC¢! ai yalsd ne Shau-eebigtese Hs fon rect sidadong ai u be ‘ root¥ i "yl tubiatoo doa blsore ewhasr foams aint ial genocren beltenil 9d} to's aR yonkem ot gta acifseed ae ove lw nowennateadd i aha oviewlain Teogavaie ss onl ne ang toch! aib eese abinktesegx e ace ’ -— Table of Contents BEE CICLO tnt re lame ae canta cane seen a re cccdpocncteacccsroree! eateecnentensenseceneccce 4 Pesticide Survey Methods ------------------------------------------------ ------------------------- 4 Survey Results ------------------------------------------------------------- ------------------------- 4 Total Acres Treated With Pesticides -------------------------------- ------------------------- 4 Pesticide Usage Results By Type of Pesticide Used--------------- ------------------------- 5 Herbicides --------------------------------------------------------- ------------------------- 5 Seed Treatments -------------------------------------------------- ------------------------- 5 Insecticides -------------------------------------------------------- ------------------------- 5 SUMM{ALY -----------------2--2$ n-n e-n nn-e n-na n-nn- nn -nnn -nn -nnn-nn- c-oe n-n n-e nn- nn-n n-n en-e e-n nn- nn e= 5 Table 1: Types of Pesticides Used On Barley In Montana, 1994---- ------------------------- 5 Table 2: Herbicide Use In Montana, 1994 ------------------------------ ------------------------- 6 Table 3: Application Characteristics Of Herbicides Used on Barley - Montana, 1994------- 8 Table 4: Seed Treatments (Fungicides) Used On Barley In Montana, 1994 ------------------ 9 Table 5: Insecticides Used On Barley In Montana, 1994 --------------------------------------- 9 Appendix 1. Pesticide-Use Survey On Barley --------------------------------------------------- 10 Appendix 2. Characteristics of Herbicides Used On Barley In Montana, 1994 -------------- 16 Appendix 3. WSSA Herbicide Classification System ------------------------------------------ 17 Oe ee he, ee ee ee me me Pe OE ee ee ot OR oe sD ee ee ee a ie ai Peed | 7 ee +60 ee ee ere + ee ee ew eh aa a. is lp cap A EAL LLL LL EA LLLAOE LLL OD . Me . Fa _ os 7 = 7 a ce te mt mms tesmeii tl ie sis i ie ee piee ti’ i oveArs 4 cv OOO ee Ee te a ceenenentee semen aoe IO] pitetao, a yingn Oo a — POOT ciusdire nAa=-iEOe A oert atTOn aAi dsI - yolinsod bole U eebiaidEtts1 0 eal pence nvnenarne (02) craail ysniweg nOM be a (eer $00! snainoMal meor©Oomv — ero ere inode a bee es c ei ee ee a tasiaye mo ' PESTICIDE USE ON BARLEY IN MONTANA, 1994 Pesticides play and important role in agriculture. They are needed to protect crops from insect attack, diseases and from weed competition. Without the availability of pesticides, the quantity and quality of crop production would be sacrificed leading to substantial economic losses for producers, consumers and the state. The United States Department of Agriculture (USDA) established the National Agricultural Pesticide Impact Assessment Program (NAPIAP) in 1976 to promote informed regulatory decisions on registered pesticides. NAPIAP accomplishes this mission through the management and coordination of USDA and State activities to: e develop and analyze information on pesticide use and pest management practices; e determine impacts of pesticide regulations on agricultural productivity, the supply of agricultural products, and product price, and; e to address pest control issues related to health and the environment. A pesticide use survey is generally conducted by Extension personnel from each state to remove the guess work from estimating kinds and quantities of pesticide used for pest control in agricultural crops. Following this procedure, a pesticide use questionnaire was mailed to Montana barley producers in March, 1995 to solicit pesticide use information during the 1994 growing season. The information obtained by this survey will serve as a useful benchmark for evaluating future herbicide use patterns in barley. PESTICIDE SURVEY METHODS The pesticide usage survey (Appendix 1) was designed to survey farmers and ranchers regarding the use of herbicides, fungicide seed treatments and insecticides on barley acres in Montana in 1994. Emphasis was placed on acres and bushels treated with specific pesticides along with treatment rates and type of applications made: custom or self. The survey and a letter explaining the purpose of the survey were mailed in March of 1995 to 630 barley producers. SURVEY RESULTS Sixteen percent (101) of the 630 surveys were returned. Of these, 85 farms (84 %) reported using herbicides, 69 farms (68%) reported using fungicide/seed treatments and 9 farms (9%) reported using insecticides. Total land reported by the survey was 300,904 acres with the average being 2979.3 acres. Total barley acres reported by the survey was 32,547 acres (10.8% of total land) with the average being 322.3 acres. Total Acres Treated With Pesticides Approximately 1.2 million acres of barley were harvested in Montana in 1994. The survey reported approximately 33,508 acres of these acres as having received a pesticide treatment. | . 12 2S0 HIyTTi ituHp eehneie m-oyrti tiaeuqpo wa ddia tPaibnegoi te6a.n 0 eidiidcicea hvaoyy ta adn uhtlucgiing s ucniida ifooqxum ixcre ogbmeCiro? wb aaa tta)w aa aea g er of} bie memuenos 2sdibe % tO! 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