in-crop-weather State Indiana Crop Weather Week Ending Date August 19, 2001 Issue IN-CW3301 Agricultural Summary Rain in some areas along with cooler temperatures late in the week helped reduce some of the stress on major crops, according to the Indiana Agricultural Statistics Service. Farmers are concerned about the damage from the recent hot weather in corn and soybean fields. Corn plants are turning brown in some fields and pod fill on soybean plants is a major concern of producers. Many farmers are now preparing equipment and grain bins for the upcoming fall harvest. Silage harvest is underway in some corn fields. Field Crops Report There were 6.2 days suitable for fieldwork. Corn condition declined and is rated 66 percent good to excellent compared with 73 percent last week and 80 percent last year at this time. Ninety-three percent of the corn acreage has reached the dough stage compared with 91 percent last year and 71 percent for the average. Fifty percent of the corn acreage is in the dent stage compared with 44 percent last year and 25 percent for the 5-year average. By area, 40 percent of the corn acreage is in the dent stage in the north, 53 percent in the central regions and 65 percent in the south. Soybean condition is rated 64 percent good to excellent compared with 67 percent last week and 69 percent last year. Three percent of the soybean acreage is shedding leaves compared with 4 percent last year and 2 percent for the average. Ninety-eight percent of the soybean acreage is setting pods compared with 93 percent last year and 78 percent for the average. Other activities during the week included, preparing equipment for the fall harvest, baling hay, cleaning grain bins, moving grain to market and care of livestock. Livestock, Pasture and Range Report Pasture condition is rated 4 percent excellent, 34 percent good, 34 percent fair, 21 percent poor and 7 percent very poor. Third cutting of alfalfa hay is 84 percent complete compared with 73 percent a year earlier. Tobacco harvest continued. Livestock are in mostly good condition. Crop Progress Table -------------------------------------------------------- : This : Last : Last : 5-Year Crop : Week : Week : Year : Avg -------------------------------------------------------- Percent Corn Dough 93 78 91 71 Corn Dent 50 31 44 25 Soybeans Podding 98 85 93 78 Soybeans Shedding Lv 3 NA 4 2 Alfalfa Third Cutting 84 70 73 NA Crop Condition Table -------------------------------------------------------- : Very : : : : Excel- Crop : Poor : Poor : Fair : Good : lent -------------------------------------------------------- Percent Corn 2 8 24 50 16 Soybeans 2 7 27 50 14 Pasture 7 21 34 34 4 Soil Moisture & Days Suitable For Fieldwork Table ------------------------------------------------------- : This : Last : Last : Week : Week : Year ------------------------------------------------------- Percent Topsoil Very Short 13 11 2 Short 37 30 16 Adequate 48 55 71 Surplus 2 4 11 Subsoil Very Short 14 11 5 Short 37 32 23 Adequate 48 55 66 Surplus 1 2 6 Days Suitable 6.2 6.3 5.5 Contact information --Ralph W. Gann, State Statistician --Bud Bever, Agricultural Statistician E-Mail Address: nass-in@nass.usda.gov http://www.nass.usda.gov/in/index.htm Other Agricultural Comments And News Soybean Viruses and the Soybean Aphid 2001 Survey Cooperative research in the Departments of Botany and Plant Pathology and Entomology at Purdue is addressing the newly introduced soybean aphid and its potential to transmit viruses. The soybean aphid is an exotic species with the ability to colonize and reproduce on soybeans. Scouting and sampling of soybeans at the Agronomy Research Center in West Lafayette during July 2001 revealed that virus infected plants were quite rare. Of the three viruses detected, bean pod mottle, tobacco ringspot, and soybean mosaic, only the latter is known to be efficiently transmitted by aphids. A call for samples! During the 2001 growing season, soybeans are being sampled to determine what viruses are present and to evaluate the potential for the soybean aphid to transmit these viruses. Your willingness to provide samples of plants with virus-like symptoms would be greatly appreciated. Put leaf samples in a paper envelope or bag (not plastic) and send by mail to the address listed at the end of this article. The type of material desired is leaf material collected from sites with plants exhibiting symptoms of virus infection (leaf mottling, mosaic, or distortion). The sampling unit is ten trifoliate leaves, each leaf collected from a separate plant (if possible) at the same site. Leaves from non-symptomatic plants of the same variety at the same site are desired, but not essential. Regarding handling, the ten trifoliate leaves can be placed in the same paper bag or envelope; leaves collected from non-symptomatic plants should be kept separate. Mark samples as to soybean variety (if known) and collection site. Please include your name and a contact phone number or email address. For further information, contact Keith Perry at 765-494-4640 or perry@btny.purdue.edu. Samples should be sent to: Dr. Keith Perry, Department of Botany and Plant Pathology, 1155 Lilly Hall, Purdue University, W. Lafayette, IN 47907. Keith Perry, Dept. of Botany and Plant Pathology, Purdue University. Weather Information Table Week Ending Sunday August 19, 2001 --------------------------------------------------------------- | Past Week Weather Summary Data |--------------------------------- Station | Air | | Avg | Temperature | Precip. |4 in. |---------------|-----------|Soil |Hi |Lo |Avg|DFN|Total |Days|Temp --------------------------------------------------------------- Northwest (1) | Valparaiso_Ag | 79 55 68 -3 1.20 3 Wanatah | 83 53 66 -5 1.04 3 73 Wheatfield | 85 48 68 -3 1.66 3 Winamac | 82 53 69 -3 1.06 3 75 North Central(2)| Logansport | 83 54 69 -3 0.95 3 Plymouth | 81 50 68 -5 1.43 3 South_Bend | 82 51 69 -3 1.22 3 Young_America | 83 52 68 -4 1.10 2 Northeast (3) | Bluffton | 84 54 71 -2 0.50 2 75 Fort_Wayne | 84 54 70 -2 1.02 2 West Central (4)| Crawfordsville | 86 51 68 -5 0.90 4 74 Perrysville | 84 49 69 -4 0.73 3 79 Terre_Haute_Ag | 91 46 70 -5 1.94 4 77 W_Lafayette_6NW | 84 47 69 -3 0.88 3 77 Central (5) | Castleton | 85 58 71 -3 1.02 4 Greenfield | 88 63 75 +3 0.88 4 Greensburg | 85 59 71 -1 1.32 4 Indianapolis_AP | 87 56 72 -2 0.67 3 Indianapolis_SE | 90 54 71 -3 0.71 4 Tipton_Ag | 85 52 69 -2 1.38 4 68 East Central (6)| Farmland | 85 51 69 -2 1.13 4 71 New_Castle | 82 54 67 -5 1.43 3 Southwest (7) | Dubois_Ag | 87 56 72 -2 1.73 3 78 Evansville | 88 58 74 -3 1.02 4 Freelandville | 86 56 72 -3 1.51 3 Shoals | 87 57 71 -4 1.50 4 Vincennes_5NE | 88 56 73 -2 0.33 3 78 South Central(8)| Bloomington | 86 55 72 -3 1.14 4 Tell_City | 88 62 75 -2 0.44 1 Southeast (9) | Scottsburg | 86 59 73 -2 0.93 3 ------------------------------------------------------------- ------------------------------------------------------------- | Accumulation | April 1, 2001 thru Station | August 19, 2001 |--------------------------------- |Precipitation| GDD Base 50oF |-------------|------------------- | Total | DFN |Days|Total| DFN ------------------------------------------------------------- Northwest (1) | Valparaiso_Ag | 16.66 -1.66 65 2344 +240 Wanatah | 17.67 -0.20 63 2183 +169 Wheatfield | 16.39 -1.02 60 2340 +275 Winamac | 18.44 +0.79 61 2325 +195 North Central(2)| Logansport | 22.95 +6.07 65 2358 +173 Plymouth | 18.59 +0.61 60 2200 -29 South_Bend | 17.18 -0.02 58 2327 +234 Young_America | 19.46 +2.58 57 2405 +220 Northeast (3) | Bluffton | 16.54 -0.47 62 2382 +140 Fort_Wayne | 19.07 +3.12 59 2346 +160 West Central (4)| Crawfordsville | 17.18 -1.87 58 2317 -30 Perrysville | 14.99 -4.11 53 2490 +189 Terre_Haute_Ag | 23.46 +4.34 54 2714 +262 W_Lafayette_6NW | 13.93 -3.75 54 2477 +297 Central (5) | Castleton | 21.20 +2.50 56 2556 +142 Greenfield | 22.77 +2.93 59 2681 +354 Greensburg | 21.25 +1.94 60 2660 +388 Indianapolis_AP | 19.49 +1.49 48 2695 +264 Indianapolis_SE | 18.02 -0.68 55 2469 +55 Tipton_Ag | 16.30 -1.67 49 2286 +169 East Central (6)| Farmland | 19.03 +1.54 57 2326 +261 New_Castle | 25.97 +6.82 59 2088 -26 Southwest (7) | Dubois_Ag | 19.19 -1.52 53 2821 +356 Evansville | 18.20 -0.10 54 3066 +237 Freelandville | 17.63 -1.42 43 2808 +274 Shoals | 19.76 -0.91 53 2664 +218 Vincennes_5NE | 14.80 -4.25 39 2920 +386 South Central(8)| Bloomington | 18.43 -0.88 54 2666 +182 Tell_City | 15.46 -5.38 38 2987 +286 Southeast (9) | Scottsburg | 20.00 +0.42 66 2765 +247 ------------------------------------------------------------- DFN = Departure From Normal (Using 1961-90 Normals Period). GDD = Growing Degree Days. Precipitation (rain or melted snow/ice) in inches. Precipitation Days = Days with precipitation of 0.01 inch or more. Air Temperatures in Degrees Fahrenheit. Copyright 2001: AWIS, Inc. All Rights Reserved. The above weather information is provided by AWIS, Inc. For detailed ag weather forecasts and data visit the AWIS home page at www.awis.com or call toll free at 1-888-798-9955.