{"id":3625,"date":"2024-02-26T08:00:00","date_gmt":"2024-02-26T08:00:00","guid":{"rendered":"https:\/\/farmingfuturefood.com\/feb2025\/?p=3625"},"modified":"2024-03-15T11:48:53","modified_gmt":"2024-03-15T11:48:53","slug":"how-insects-sweet-excretions-could-be-used-to-benefit-growers","status":"publish","type":"post","link":"https:\/\/farmingfuturefood.com\/feb2025\/how-insects-sweet-excretions-could-be-used-to-benefit-growers\/","title":{"rendered":"How insects\u2019 sweet excretions could be used to benefit growers"},"content":{"rendered":"\n<p class=\"has-medium-font-size wp-block-paragraph\">Managing honeydew, the sugary excretions of some plant-feeding insects, should be considered as part of <a href=\"https:\/\/farmingfuturefood.com\/feb2025\/how-does-integrated-pest-management-reduce-chemical-pesticide-use-everything-you-need-to-know-about-ipm\/\" target=\"_blank\" rel=\"noopener\" title=\"\">integrated pest management<\/a> strategies, according to the authors of a study examining its role in growing environments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Honeydew is mainly produced by species from the order Hemiptera or \u2018true bugs\u2019, but also some caterpillars. It has traditionally been viewed only as a \u2018problem\u2019 by growers, but with more understanding of its multifaceted role, there needs to be a re-evaluation of how it can fit into successful crop protection, wrote Maite Fern\u00e1ndez de Bobadilla from Instituto Valenciano de Investigaciones Agrarias in the journal <em><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/38097038\/#:~:text=First%2C%20the%20presence%20of%20nondamaging,biological%20control%20of%20these%20pests.\" target=\"_blank\" rel=\"noopener\" title=\"\">Current Opinion in Insect Science<\/a><\/em>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Attracting friends, stopping ants<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Her team suggested five ways this could be achieved. Firstly, non-pest insects which produce honeydew should be actively encouraged around growing environments, as the sweet substance provides a carbohydrate source for natural enemies of economically important pests. This could be done using flower strips and appropriate cover crops.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The second task is to break the association between ants and honeydew-producing pests, she said. Ants often protect such species, posing a problem for natural methods of pest control. \u00a0Sugar baits have been successfully used to attract ants away from <a href=\"https:\/\/www.mcgill.ca\/oss\/article\/did-you-know\/farmer-ants-and-their-aphid-herds\" target=\"_blank\" rel=\"noopener\" title=\"\">their pest \u2018farms\u2019<\/a> in a number of crops, she noted, but the presence of flowering plants and non-pest honeydew producers near crops has yet to be fully tested.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tapping honeydew\u2019s chemical cocktail<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The use of airborne chemicals from honeydew could also help with pest control, by attracting potential biological controls and putting off pests which could be \u2018fooled\u2019 into perceiving a food source is already over-populated.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cIdentifying which part of the volatile blend attracts biological control agents and repels pests is the first step to develop artificial infochemical blends to promote pest suppression in our crops,\u201d she explained.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tapping components in honeydew which prompt plant defences is another possible avenue to explore, albeit one where knowledge is limited to date. A number of studies have demonstrated plant responses to the presence of honeydew, explained Fern\u00e1ndez de Bobadilla, though the exact chemical signals have yet to be unravelled. Doing so could potentially enable crops to be \u2018vaccinated\u2019 and made more resistant to attack.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Risks to manage \u2014 and pesticide warning<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Despite all these potential advances, there are still risks to be managed. Primary among them is limiting sooty mould growth on honeydew, as it can affect plant growth and crop quality. Then, there are some pests such as fruit and root flies and feed on honeydew as adults, meaning that the risks and benefits of using honeydew need to be assessed. Excessive honeydew can also hamper the movement of natural enemies, which means that honeydew-producers need to be kept below certain thresholds.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cFinally, recent studies show that systemic insecticides are transferred to honeydew excreted by hemipterans that feed on plants treated with these insecticides. This honeydew is then toxic to natural enemies of herbivores,\u201d added Fern\u00e1ndez de Bobadilla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cTherefore, we strongly suggest using insecticides only as a last option within a pest management program.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Managing honeydew, the sugary excretions of some plant-feeding insects, should be considered as part of integrated pest management strategies, according to the authors of a study examining its role in growing environments.<\/p>\n","protected":false},"author":4,"featured_media":3626,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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