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Herbicides are usually the most cost-effective method, with two main production contexts: forest plantations and specialist horticultural production. The field book identifies suitable candidate herbicides for each situation and provides guidance on safe and effective use. It also explains weed competition impacts, herbicide selection, crop tolerance, application regimes, and supporting references.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/weed-control-in-christmas-tree-plantations-field-book-15/441487/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/weed-control-in-christmas-tree-plantations-field-book-15/441487.png","ImageObject",300,407,{"name":92,"@type":93},"Bulrr","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-31","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Why is weed control critical for Christmas tree production?","Question",{"text":112,"@type":113},"Weeds compete for moisture, nutrients, and light, reducing growth and survival, and can damage trees by abrading branches, browning and dropping needles, and causing ragged crown growth. Achieving a high standard helps produce top quality trees with better sale value.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What two main production situations does the book address for weed control?",{"text":117,"@type":113},"It distinguishes between production in forest plantations and specialist horticultural production. For these two situations, it identifies suitable candidate herbicides and provides guidance for safe and effective use.",{"name":119,"@type":110,"acceptedAnswer":120},"How should workers determine herbicide suitability for specific conifer species?",{"text":121,"@type":113},"Use the publication as a guide, then test small areas to determine tolerance of the specific conifer species to individual herbicides before applying on a large scale. 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Introduction  \n2.    Types of weed control23.    Plantation systems3Forest plantations3Horticultural/nursery plantations3  \n4.    Specialist production -weed control regimes  \n5  \n## 5.     Herbicide choice\n\n6  \nTable 1.Herbicide crop tolerance  \n7  \nTable 2.Herbicide options and rates  \n9  \nTable 3.Susceptibility of germinating weeds  \nto selective pre-emergent herbicides 12  \nTable 4.Susceptibility of common weeds to  \nselective post-emergent herbicides  \n18  \n26  \nPre-planting  \nPre-flushing residual control on clean sites  \n26  \nPost-flushing control of established weeds and  \nend-of-season clean up  \n27  \nPre-flushing control of established weeds with  \n28  \nresidual activity  \n## 6.    Herbicide characteristics(for all situations)\n\n29  \n## 7.     References35\n\n36  \n## 8.    Appendix\n\n36  \nLong-term off-label arrangements  \nApproved products as of August 199638  \n## Acknowledgements\n\nJohn Morgan collected and made available useful information on thesubject.Mike Lofthouse,Paul Tabbush and Professor Julian Evansmade helpful comments on the text.Typing was by Pam Wright.  \nFront cover:Two-year-old Norway spruce Christmas trees in a  \nwell-wooded area on Yattendon Estate,Berkshire.(41642)  \nThis publication has been written for three reasons:  \n● good Christmas trees must possess good shape andhealthy foliage-this requires,amongst other things,a high standard of weed control;  \n● Christmas trees are valuable crops and any risk ofdamage to foliage must be minimized;  \n● in many situations Christmas tree production is ahorticultural activity where special rules apply.Theseextend the range of herbicides that may be usedcompared with normal forestry situations.  \nIn common with more conventional tree plantings,weeds competefor moisture,nutrients and light with Christmas trees.Suchcompetition reduces tree growth and survival,and increases thelength of time required to produce ","cbCaincur8Qt73K7","https://ap.wps.com/l/cbCaincur8Qt73K7","pdf",2856123,52,"English","# Abstract\n# Disclaimer\n# Contents\n## 1. Introduction\n## 2. Types of weed control\n## 3. Forest plantations\n## 4. Specialist production -weed control regimes\n## 5. Herbicide choice\n## 6. Herbicide characteristics (for all situations)\n## 7. References\n## 8. Appendix\n## Acknowledgements","[{\"question\":\"Why is weed control critical for Christmas tree production?\",\"answer\":\"Weeds compete for moisture, nutrients, and light, reducing growth and survival, and can damage trees by abrading branches, browning and dropping needles, and causing ragged crown growth. Achieving a high standard helps produce top quality trees with better sale value.\"},{\"question\":\"What two main production situations does the book address for weed control?\",\"answer\":\"It distinguishes between production in forest plantations and specialist horticultural production. For these two situations, it identifies suitable candidate herbicides and provides guidance for safe and effective use.\"},{\"question\":\"How should workers determine herbicide suitability for specific conifer species?\",\"answer\":\"Use the publication as a guide, then test small areas to determine tolerance of the specific conifer species to individual herbicides before applying on a large scale. The book also stresses always reading and following the product label instructions.\"}]","Weed Control in Christmas Tree Plantations - Field Book 15 | PDF",1790696264,131]