{"id":552,"date":"2019-08-02T16:41:15","date_gmt":"2019-08-02T20:41:15","guid":{"rendered":"https:\/\/site.extension.uga.edu\/threerivers\/?p=552"},"modified":"2019-08-02T16:43:26","modified_gmt":"2019-08-02T20:43:26","slug":"insect-update","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/threerivers\/2019\/08\/insect-update\/","title":{"rendered":"Insect Update"},"content":{"rendered":"

This time of year it is important to be scouting fields for insects and the damage they cause in our agronomic crops.\u00a0 Crops like peanuts, cotton, corn, soybeans and sorghum can all be attacked by insect pests that can decrease yields and cause other problems in harvested commodities.\u00a0 \u00a0Stink bugs are one pest that cotton scouts and consultants are on the lookout for right now.\u00a0 Cotton in most fields is in a susceptible stage for damage from stink bug feeding.\u00a0 They use their piercing\/sucking mouth parts to feed internally on the seed.\u00a0 This causes damage to the seed, and can introduce bacteria and fungi that lead to boll rot.<\/p>\n

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Internal Stink Bug Damage<\/figcaption><\/figure>\n

We don’t often see many stink bugs when walking through cotton fields, so we look for the damage.\u00a0 By selecting bolls between a dime and a quarter in diameter we can look for internal damage.\u00a0 During weeks 3 – 5 of bloom we use a threshold of 10-15% damage.\u00a0 as we move further into the season we can handle a bit more damage.<\/p>\n

Since it has been hot and dry spider mites are also beginning to flare up in spots.\u00a0 This is important to know especially when making spray decision for other pests.\u00a0 Using a broad spectrum insecticide when a small mite problem exists usually creates a large mite problem.\u00a0 Hopefully afternoon showers over the weekend will help slow down the spread of any mite infestations.<\/p>\n

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spider mites and damage to cotton leaf<\/figcaption><\/figure>\n

On soybeans, kudzu bugs are back.\u00a0 Last year we saw quite a few but a fungus ended up wiping out most infestations.\u00a0 We will need some wetter weather if we expect the same to happen in 2019.<\/p>\n

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Just because we see adults by the thousands does not mean we have to spray.\u00a0 The official threshold is 1 immature kudzu bug per sweep using a net.\u00a0 I prefer to just visibly inspect the plants.\u00a0 If you have high adult populations and nymphs are readily found throughout the field it probably warrants a spray.\u00a0 The fields i was in yesterday had thousands of adults and probably many more eggs, but there were no immature bugs.\u00a0 In that case we will monitor the field to see if the little guys in the picture make it through the week.\u00a0 they are not fast and don’t scare other insects so they often don’t make it to see their birthdays.\u00a0 When the canopy is still open immature kudzu bugs usually have trouble surviving.<\/p>\n","protected":false},"excerpt":{"rendered":"

This time of year it is important to be scouting fields for insects and the damage they cause in our agronomic crops.\u00a0 Crops like peanuts, cotton, corn, soybeans and sorghum can all be attacked by insect pests that can decrease yields<\/p>\n","protected":false},"author":122,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-552","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/threerivers\/wp-json\/wp\/v2\/posts\/552","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.extension.uga.edu\/threerivers\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/site.extension.uga.edu\/threerivers\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/threerivers\/wp-json\/wp\/v2\/users\/122"}],"replies":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/threerivers\/wp-json\/wp\/v2\/comments?post=552"}],"version-history":[{"count":5,"href":"https:\/\/site.extension.uga.edu\/threerivers\/wp-json\/wp\/v2\/posts\/552\/revisions"}],"predecessor-version":[{"id":558,"href":"https:\/\/site.extension.uga.edu\/threerivers\/wp-json\/wp\/v2\/posts\/552\/revisions\/558"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/threerivers\/wp-json\/wp\/v2\/media?parent=552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/threerivers\/wp-json\/wp\/v2\/categories?post=552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/threerivers\/wp-json\/wp\/v2\/tags?post=552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}