Major pest control agent for cycads

Abstract

The invention discloses a major pest control agent for cycads and belongs to the field of agricultural production. The major pest control agent for cycads comprises effective active components: 4.5 to 7.5% carbofuran and 15 to 25% of imidacloprid. The agent is used for the cycads and can effectively control cycad pests such as chilades pandava, pseudaulacaspis cockerelli, lepidosaphesulmi linnaeus and thrips.

Description

technical field [0001] The invention belongs to the field of agricultural production, and in particular relates to a cycad main insect pest control agent. Background technique [0002] The shape of the cycad tree is elegant, the trunk is thick and hard as iron; the feathers and leaves are smooth and bright, evergreen in all seasons, and it is a precious ornamental tree species. In the south, it is mostly planted beside the steps in front of the courtyard and in the lawn; in the north, it is suitable for large-scale potted plants, and it is very beautiful to arrange courtyards, corridors and halls. In cultivation, the main insect pests of cycads include purple gray butterfly, white shield scale, elm, oyster scale and thrips. [0003] The purple gray butterfly generally has 6~7 generations every year, and its damage peak period is from July to October. The first generation of larvae hatched in early and mid-June. It is common for a dozen or even dozens or hundreds of larvae ...

AI Technical Summary

Problems solved by technology

[0005] There are relevant literatures reporting the prevention and control methods of the main pests of cycads, but the existing methods can only control a single or a small number of pests, and cannot comprehensively control

For example, Qin Yuanli, Wu Yaojun, etc. (2006), Wang Jing, Lu Zhuan, etc. (2012) reported using 50% monocrotophos EC 1000 times, 50% methamidophos EC 1000 times, 40% omethoate EC 1000 times , 10% cypermethrin 4000 times solution, 80% dichlorvos EC 1500 times solution, 20% Misaoli EC 1000 times solution, 20% methethrin EC 2500-3500 times and other medicaments to prevent and control the harm of the purple gray butterfly. However, the pesticides reported in this literature cannot effectively control other cycad pests, such as white shield scale and elm oyster scale; Wu Jianlong (2013), Wang Hui (2012), Zhao Zhirong, Chen Baocai, etc. (2014) ) report 80% dichlorvos EC 1000 times, 5% imidacloprid emulsion 500 times or 50% fenitrothion 1000 times or pine ester mixture 7-10 times or organic emulsion 30 times or 50% fenitrothon EC 1000 The multiple solution can effectively control the harm of the white shield scale. Apply 1000 times of 3% Mobilan EC, and re-apply once 14 to 20 days after the first application to prevent and control the harm of the elm oyster scale. Choose 40 % quick kill 1000-1500 times liquid, or 50% fenitrothion 1000 times liquid etc. to prevent and control scale insects, but the medicaments reported in this document cannot prevent and control other cycad pests, such as cycads, etc.; comprehensively related literature , found that these agents can only control a single disease, or the efficacy is not good

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