{"id":3362,"date":"2019-08-20T07:37:19","date_gmt":"2019-08-20T11:37:19","guid":{"rendered":"http:\/\/blog.uvm.edu\/hoppenin\/?p=3362"},"modified":"2019-08-20T07:37:19","modified_gmt":"2019-08-20T11:37:19","slug":"what-to-be-on-the-lookout-for-in-your-hop-yard","status":"publish","type":"post","link":"https:\/\/blog.uvm.edu\/hoppenin\/2019\/08\/20\/what-to-be-on-the-lookout-for-in-your-hop-yard\/","title":{"rendered":"What to be on the lookout for in your hop yard"},"content":{"rendered":"\n<p>The three\nmajor arthropod pests of hops in the Northeast are Potato Leafhopper (PLH),\nTwo-spotted Spider Mites (TSSM), and Hop Aphids (HA). This incidence of these\npests in hop yards is based on the weather conditions, and we found that the\nhop aphids preferred cool and moist conditions and populations peaked around\nthe time of harvest through September. For more information about disease,\nweed, and insect pest populations, check out our six-year study, <a href=\"https:\/\/www.uvm.edu\/sites\/default\/files\/Northwest-Crops-and-Soils-Program\/2016-ResearchReports\/2016_Hop_Variety_Trial_April2017.pdf\">Organic Hop Variety Trial<\/a> . <\/p>\n\n\n\n<p>Hop aphids (<em>Phorodon humuli<\/em>) are small soft-bodied\ninsects that come in both wingless (immature individuals) and winged (adult\nfemales) forms, both of which are found on hop plants. Hop aphids are pear\nshaped and range in color from pale white to a yellowish-green and are found on\nthe underside of the hop leaf. They do not over winter on hops, but rather on a\nvariety of plants in the Prunus genus (Family Rosaceae). Hop aphids over winter\nas eggs and in early spring the eggs hatch and reproduce asexually for one or\ntwo generations before the winged form migrates to hop plants in May.&nbsp; <\/p>\n\n\n\n<p>These small\ninsects have piercing-sucking mouth parts that are used to feed on the hop\nleaves and cones, and suck the phloem from the plant. This can cause leaves to\ncurl, and turn cones brown and limp. Hop aphids also release a sugary substance\ncalled \u201choney dew\u201d, which allows for the growth of sooty mold fungi on the hop\nleaves and cones. While leaf feeding can decrease the marketability of the\ncrop, the bigger threat to hop yield and quality is the sooty mold which results\nin aesthetic cone damage and a decreased cone quality. <\/p>\n\n\n\n<p>It is\nimportant to start scouting early in the season and monitor hop aphid\npopulations throughout the season. One way to control hop aphids is the use of\nnatural enemy arthropods. A list of management tactics and natural enemy\narthropods can be found in <a href=\"https:\/\/www.uvm.edu\/sites\/default\/files\/media\/Hop_Aphid.pdf\">Hop Aphid, <em>Phorodon humuli<\/em> (Schrank), in\nNortheastern Hop yards<\/a>. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>The three major arthropod pests of hops in the Northeast are Potato Leafhopper (PLH), Two-spotted Spider Mites (TSSM), and Hop Aphids (HA). This incidence of these pests in hop yards is based on the weather conditions, and we found that the hop aphids preferred cool and moist conditions and populations peaked around the time of &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/blog.uvm.edu\/hoppenin\/2019\/08\/20\/what-to-be-on-the-lookout-for-in-your-hop-yard\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;What to be on the lookout for in your hop yard&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1000,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[160314,160313,160320,36694],"class_list":["post-3362","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-aphids","tag-hop-aphids","tag-hop-yard","tag-scouting","entry"],"featured_image_src":null,"featured_image_src_square":null,"author_info":{"display_name":"hoppenin","author_link":"https:\/\/blog.uvm.edu\/hoppenin\/author\/hoppenin\/"},"_links":{"self":[{"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/posts\/3362","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/users\/1000"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/comments?post=3362"}],"version-history":[{"count":1,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/posts\/3362\/revisions"}],"predecessor-version":[{"id":3363,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/posts\/3362\/revisions\/3363"}],"wp:attachment":[{"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/media?parent=3362"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/categories?post=3362"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/tags?post=3362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}