{"id":540,"date":"2019-07-11T10:09:59","date_gmt":"2019-07-11T14:09:59","guid":{"rendered":"https:\/\/site.extension.uga.edu\/worthag\/?p=540"},"modified":"2019-07-11T11:09:37","modified_gmt":"2019-07-11T15:09:37","slug":"540","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/worthag\/2019\/07\/540\/","title":{"rendered":"Corn and Grain Storage Preparation"},"content":{"rendered":"

Black layer stage of corn will be nearing in some of the older corn in the county. With that, it is time to prepare storage bins for this year’s grain crop. Here is some information below from Dr. Mike Toews out of the UGA Corn Production Guide<\/strong><\/span> on preparing to store corn.<\/p>\n

\n

PROTECTING STORED CORN<\/span><\/strong><\/h2>\n

Dr. Michael Toews<\/i><\/span><\/strong><\/p>\n

\u00a0<\/i><\/b><\/p>\n

The key to storing grains and other commodities on the farm is to make storage conditions unfavorable for the survival of stored grain insects and molds. The following steps are designed to reduce the initial number of insects in the bin, slow the development of any remaining insects, and apply corrective measures to reduce insect populations if necessary. Following these steps will also greatly reduce stored grain molds and associated mycotoxins.<\/p>\n

Empty Bin Preparation<\/strong><\/span><\/h2>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Clean storage bins thoroughly inside and out to eliminate starter colonies of insects. Remove any weeds, crop debris, or clutter around the facility to reduce insect and\u00a0rodent activity. All grain residues from the previous year should be removed from inside the facility as soon as the old crop is\u00a0shipped.<\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Seal any gaps or holes in the sides and roof of the bin using caulk or polyurethane\u00a0foam. Check to make sure the bottom seal with the concrete is intact. Prevent water from flowing underneath the bin by applying plastic roofcement.<\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Apply an\u00a0EPA-approved\u00a0insecticide on the floors and sides of empty storage bins to eliminate insects hiding in cracks and crevices and to create a first line of defense\u00a0against any insects that do find their way into the bin. Spray the outside of the bin to a height of 3 ft, and the surrounding concrete, gravel, or sod to a distance of 6-10 ft surrounding the bin. Insecticides shown in Table 1 are labelled for empty bin\u00a0treatments.<\/p>\n

Table 1. Insecticides labelled for empty bin treatments<\/strong><\/span><\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n
\n

Insecticide<\/b><\/b><\/p>\n<\/td>\n

\n

Rate<\/b><\/b><\/p>\n<\/td>\n

\n

MOA<\/b><\/b><\/p>\n<\/td>\n

\n

Remarks<\/b><\/b><\/p>\n<\/td>\n<\/tr>\n

\n

beta-cyfluthrin<\/i><\/i><\/p>\n

Tempo SC\u00a0Ultra<\/p>\n<\/td>\n

\n

0.25-0.5 fl<\/p>\n

oz\/gal\/1000 sq ft<\/p>\n<\/td>\n

\n

3A<\/p>\n<\/td>\n

\n

Apply to all interior surfaces of storage bin and allow to dry before filling bins.<\/p>\n<\/td>\n<\/tr>\n

\n

deltamethrin<\/i><\/i><\/p>\n

Centynal EC<\/p>\n<\/td>\n

\n

0.25-1.5 fl<\/p>\n

oz\/gal\/1000 sq ft<\/p>\n<\/td>\n

\n

3A<\/p>\n<\/td>\n

\n

Apply to wall and floor surfaces of grain bins and warehouses prior to storing or handling grain.<\/p>\n<\/td>\n<\/tr>\n

\n

deltamethrin<\/i><\/i><\/p>\n

D-Fense SC<\/p>\n<\/td>\n

\n

0.25-1.5 fl<\/p>\n

oz\/gal\/1000 sq ft<\/p>\n<\/td>\n

\n

3A<\/p>\n<\/td>\n

\n

Use for exterior perimeter treatment only.<\/p>\n<\/td>\n<\/tr>\n

\n

deltamethrin<\/i><\/i><\/p>\n

Suspend SC<\/p>\n<\/td>\n

\n

0.25-1.5<\/p>\n

floz\/gal\/1000 sq<\/p>\n

ft<\/p>\n<\/td>\n

\n

3A<\/p>\n<\/td>\n

\n

Apply finished spray to equipment, wall and floor surfaces of grain bins and warehouses prior to\u00a0storing or handlinggrain.<\/p>\n<\/td>\n<\/tr>\n

\n

diatomaceous<\/i>earth<\/i><\/i><\/p>\n

Insecto<\/p>\n<\/td>\n

\n

Dust: 1 lb\/1000 sq ft<\/p>\n<\/td>\n

\n

\n<\/td>\n

\n

Apply at least 2-3 days before filling bin. Use aeration fan or other air supply to apply dust.<\/p>\n<\/td>\n<\/tr>\n

\n

diatomaceous earth<\/i><\/i><\/p>\n

Dryacide 100<\/p>\n<\/td>\n

\n

Dust: 1-3 lb\/1000 sq ft Slurry: 1.5 lb\/1.5 gal\/100 sq<\/p>\n

ft<\/p>\n<\/td>\n

\n

\n<\/td>\n

\n

Apply as a dust with a hand or power duster or as a slurry spray.<\/p>\n<\/td>\n<\/tr>\n

\n

diatomaceous earth<\/i><\/i><\/p>\n

Protect-It<\/p>\n<\/td>\n

\n

Dust: 0.6 lb\/1000 sq ft Slurry: 1.5 lb\/1.5 gal\/100 sq<\/p>\n

ft<\/p>\n<\/td>\n

\n

\n<\/td>\n

\n

Apply 2 weeks before filling bins. Use a dust blower or bin fan to reach all surfaces, cracks and crevices.\u00a0Apply slurry as a finemist.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

 <\/p>\n

\n\n\n\n\n\n\n
\n

deltamethrin + chlorpyrifos methyl<\/i><\/i><\/p>\n

Storcide II<\/p>\n<\/td>\n

\n

1.8 fl oz\/gal\/1000 sq ft<\/p>\n<\/td>\n

\n

1B+3A<\/p>\n<\/td>\n

\n

Application can only be made from outside the bin using automated spray equipment.<\/p>\n<\/td>\n<\/tr>\n

\n

pyriproxyfen<\/i>Nyguard IGR Concentrate<\/p>\n<\/td>\n

\n

0.8-2.4<\/p>\n

tsp\/gal\/1500 sq ft 4-12 ml\/gal\/1500<\/p>\n

sq ft<\/p>\n<\/td>\n

\n

7C<\/p>\n<\/td>\n

\n

This product will not kill adults but will control immatures. May be mixed with an adulticide.<\/p>\n<\/td>\n<\/tr>\n

\n

s-methoprene<\/i><\/i><\/p>\n

Diacon-D\u00a0IGR<\/p>\n<\/td>\n

\n

1.5 oz\/1000 sq ft<\/p>\n<\/td>\n

\n

7A<\/p>\n<\/td>\n

\n

This product will not kill adults, but will control<\/p>\n

immatures; applicators must wear a dust mask and protective gloves.<\/p>\n<\/td>\n<\/tr>\n

\n

s-methoprene<\/i><\/i><\/p>\n

Diacon IGR<\/p>\n<\/td>\n

\n

Fogging Treatment: 1 ml\/1000 sq ft (0.2 tsp\/1000 sq ft)<\/p>\n

Pressure Spray: 2 ml\/1000 sq ft (0.4 tsp\/1000 sq ft)<\/p>\n<\/td>\n

\n

7A<\/p>\n<\/td>\n

\n

Apply\u00a0fogging\u00a0treatment\u00a0in\u00a0water\u00a0or\u00a0oil\u00a0in\u00a0acold\u00a0aerosol generator. Diacon IGR is an insect- growth regulator that interferes with the development of insects. It will not kill adult insects. Apply as a pressure spray in low- pressure\u00a0sprayer\u00a0to\u00a0all\u00a0areas\u00a0that\u00a0mayharbor\u00a0insect\u00a0pests.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Eventually, insects will build up on fines and broken kernels that accumulate under the perforated bin\u00a0floor.\u00a0Bins with false floors should be fumigated if the grain debris cannot be removed. Cover with plastic tarp (6 ml or thicker) to contain and hold the gas. Place the fumigant over the empty floor under the tarp. Fumigation should only be conducted by trained and licensed applicators. Read the label and the applicator\u2019s manual.\u00a0You\u00a0will need to prepare a fumigation management plan before you\u00a0fumigate.<\/p>\n

\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Don\u2019t forget to clean out harvesting and loading equipment such as combines, trucks and augers the end of each harvest season. If not clean, insects will reproduce in the small amounts of grain left in the equipment and then be conveyed into the new crop grain.<\/p>\n

It is important to remember to store corn at 12% moisture for long term storage (12 months)<\/strong><\/span><\/p>\n

Update on Stored Grain Protectants: Dr. Mike Toews<\/strong><\/span><\/p>\n

Empty Bin Treatments<\/strong><\/span>
\nCentynal EC<\/strong>. This is a good product for treating empty bins and elevator boots. Note that the
\nactive ingredient in Centynal EC, Defense SC and Suspend SC are identical.\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Defense SC<\/strong> (labeled for empty bin use only). This is a good product for treating empty bins
\nand elevator boots, but is not labeled for application directly to grain. Note that the active
\ningredient in Centynal EC, Defense SC and Suspend SC are identical.
\nSuspend SC<\/strong>. This is a good product for treating empty bins and elevator boots. Note that the
\nactive ingredient in Centynal EC, Defense SC and Suspend SC are identical.
\nTempo SC<\/strong> (labeled for empty bin use only). Tempo is a good product for treating empty bins
\nand elevator boots, but is not labeled for application directly to grain.<\/p>\n

Direct Application to Shelled Corn and Grain Sorghum<\/strong><\/span><\/p>\n

Actellic 5E<\/strong>. This product has long been the standard for use on corn and grain sorghum. A full
\nrate will provide protection from weevils for 9-12 months. Reducing the rate will decrease the
\nlongevity of the protection. UGA data suggest that Actellic is susceptible to heat degradation in
\nthe drier when grain temperatures exceed 120 F.
\nCentynal EC.<\/strong> Centynal EC is a new formulation that will provide 3 to 6 months of protection
\nfrom weevils. This material is heat stable in the drier (tested up to 150 F).
\nDiacon IGR.<\/strong> Diacon IGR is an insect growth regulator that is effective for killing nearly all
\nimmature grain moths and beetles, except weevils. The 4 oz per 1000 bu rate is sufficient for
\ntank mixing.
\nDiacon IGR PLUS.<\/strong> This product is a premix of Centynal EC and Diacon IGR.
\nMalathion.<\/strong> Although widely used in the past, this product is no longer recommended due to well
\ndocumented resistance in many stored grain insect populations. Expect malathion to break down
\nin the drier.
\nSensat.<\/strong> This product is new to the market, but has been in our evaluation program for several
\nyears. Test results show excellent weevil control for up to 12 months. No dryer stability data at
\nthis time.
\nStorcide II.<\/strong> Storcide II is labeled for use on wheat and grain sorghum, but not corn. Protection
\nwill degrade with heat and time.
\nSuspend SC.<\/strong> This product is an older formulation that must be completely suspended before
\nmeasuring and requires frequent agitation. It provides 3 to 6 months of protection from weevils.
\nThree-way tankmix<\/strong> (only tested on corn<\/span>). UGA tests from 2014-2018 showed that a threeway
\ntank mix of Centynal (8.5 oz) plus Diacon IGR (4 oz) plus PBO-8 Synergist (13.5 oz) per
\n1000 bu will provide 6-9 months of protection from weevils. This is a moderately priced option
\nfor growers in markets where other products are unavailable or cost is a limiting factor.<\/p>\n

Regardless of the product used, be mindful that grain protectants are not a silver bullet. Shelled
\ncorn should be dried to a maximum of 15.5% moisture content before dropping into the storage
\nbin and must be immediately aerated to further reduce moisture content. Chemical applications
\nshould only be made to clean grain that will be stored for more than 3 months. Apply protectants
\nat the bottom of the auger in a course spray to maximize coverage as the kernels are moving up
\nto the top of the bin. Long-term grain storage requires moisture content below 14%, proper
\nhousekeeping, use of a spreader when filling bins, and managed aeration.<\/p>\n

 <\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Black layer stage of corn will be nearing in some of the older corn in the county. With that, it is time to prepare storage bins for this year’s grain crop. Here is some information below from Dr. Mike Toews out of the UGA Corn Production Guide on preparing to store corn. PROTECTING STORED CORN […]<\/p>\n","protected":false},"author":217,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,26],"tags":[],"class_list":["post-540","post","type-post","status-publish","format-standard","hentry","category-corn","category-grain-storage"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts\/540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/users\/217"}],"replies":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/comments?post=540"}],"version-history":[{"count":3,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts\/540\/revisions"}],"predecessor-version":[{"id":543,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts\/540\/revisions\/543"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/media?parent=540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/categories?post=540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/tags?post=540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}