可在若虫孵化期喷洒40%速蚧克乳油1500倍液，或48%毒死蜱乳油1200倍液等杀灭若虫。
Release time:
2023-04-12 17:35
主要以若虫、雌成虫聚集于小枝叶片、嫩梢、枝干等部位刺吸汁液，常造成树势衰弱，生长不良，而且，其分泌的大量蜜露会诱发严重的煤污病，小枝呈黑色，失去观赏价值。可在若虫孵化期喷洒40%速蚧克乳油1500倍液，或48%毒死蜱乳油1200倍液等杀灭若虫。
科学修剪 紫薇萌芽力强，极耐修剪，且花芽形成速度快，因此，花谢后及时剪除残花可促进植株多次抽生新梢，多次开花。早春修剪强度可稍大，疏除过密枝、重叠枝、徒长枝、内膛的病虫枝、枯死枝。重剪主侧枝、延长枝，压缩老枝，可使春季萌发分枝多，开花早。春季新梢生长至10厘米至15厘米时，保留8厘米至10厘米长摘心，使营养集中供应，以促进分枝，增加花枝量。第一次花谢后剪去花枝上部，留壮芽，使下部腋芽萌发，再生新梢孕蕾。30天左右可陆续第二次开花。花谢后及时剪除残花，积累营养，促进新枝花芽分化，约30天左右又可第三次开花。这样反复轮流修剪，并在每次开花前及时补充磷钾肥，可促进植株多次开花，且每次开花间隔时间缩短。可达到多次开花的目的。
常州碧丽在绿化养护管理上，了解种植类型和各种品种的特征与特性，在园林绿化时，规划设计高标准，施工养护高水平，实现景观四季常绿！
Previous Page
Next Page
Related News
The 23rd Annual Conference and Exhibition of the African Water Association (Cameroon)
Hall Number: HALL2 Hall Address: VGR2+84M, Yaounde, Cameroon
The Essential Guide to Using Chlorine for Swimming Pools
Chlorine is a critical element in ensuring the cleanliness and safety of swimming pools. Its primary purpose is to disinfect pool water, eliminating harmful bacteria, viruses, and algae that can compromise the health of swimmers. Understanding how to properly use chlorine for swimming pools is essential for maintaining a safe and enjoyable swimming environment. There are several types of chlorine
Chemical Processes in Water Treatment: What You Need to Know for Effective Water Purification
Chemical Processes in Water Treatment: What You Need to Know for Effective Water Purification Table of Contents Introduction to Water Treatment Why Water Treatment is Essential Key Chemical Processes in Water Treatment Coagulation and Flocculation Sedimentation Filtration Disinfection Advanced Water Treatment T
Contact Us
TEL: 86-(0)22 23993297(Tianjin Office)
Mobile: 0086 13502065170
WeChat/WhatsApp：0086 13502065170
Website:www.hhkfchem.com
Mailbox:liufy@hhkfchem.com
Huanghua Kaifeng Chemical Co., Ltd.
Protect water sources and care for the environment
©COPYRIGHT 2023 Huanghua Kaifeng Chemical Co., Ltd. ALL RIGHTS RESERVED |SEO Tags
Feedback
