Techniques of forecasting and predicating Dendrolimus houi

ZHAO Ren-you; XU Zhen-wang; LUO Song-gen; YANG Shao-li

PDF
Cite
Share

facebook

twitter

google

linkedin

Volume 20 Issue 1

Jul. 2017

Turn off MathJax

Article Contents

Article Navigation > Journal of Zhejiang A&F University > 2003 > 20(1): 49-53

ZHAO Ren-you, XU Zhen-wang, LUO Song-gen, YANG Shao-li. Techniques of forecasting and predicating Dendrolimus houi[J]. Journal of Zhejiang A&F University, 2003, 20(1): 49-53.

Citation:

ZHAO Ren-you, XU Zhen-wang, LUO Song-gen, YANG Shao-li. Techniques of forecasting and predicating Dendrolimus houi[J]. Journal of Zhejiang A&F University, 2003, 20(1): 49-53.

Techniques of forecasting and predicating Dendrolimus houi

1.
Forest Disease and Pest Control Station of Lishui City , Lishui 323000, Zhejiang , China;
2.
Forest Disease and Pest Control Station of Suichang County , Suichang 323300, Zhejiang , China

Received Date: 2002-05-08
Rev Recd Date: 2002-11-25
Publish Date: 2003-02-20

Abstract

By raising and observing the larva of Dendrolimus houi , it is known that the larva is 7 instars .Their average appetite is 104.4 g and increases distinctly after 4 instars .Therefore , the prevention and control of the insect shall be carried out before 4 instars .The 1 ～ 2 instar larva has a high death rate , accounting for 30 %～40 %.The death rate decreases after 3 instars and their population is stable .It is the best opportunity to carry out forecast and investigation .The formula to calculate the leave quatity by the diameter of Cryptomeria fortuneicrown is lgW =a +blgD .The formula establishes the grade of Cryptomeria fortunei crown and insect pest .The formula of the distribution pattern of the insect is ＊m =14.275 7 +1.124 0m .The formula for the predication of population of insect number in a tree by the average insect number in two lower branches is y =9.754 4x1.157 4 .These formulas conform to the requirement for precision and promote the working efficiency .
- Dendrolimus houi,
- space distribution pattern,
- sample technique,
- predication technique

Relative Article

[1]	YUE Jia, CAI Yingping, WU Weiguang. On the impact of contract farming on family farms’ adoption of environmentally friendly technologies . Journal of Zhejiang A&F University, 2022, 39(1): 207-213. doi: 10.11833/j.issn.2095-0756.20200726
[2]	JIANG Bing, XIE Jianhua, WANG Zichun, LIANG Wangwang, YANG Zelin, LIN Lu, ZHANG Tingjuan, PENG Yuanyi, NIE Kui, FANG Rendong. Application of genotyping methods to monitoring and source-tracking of Listeria monocytogenes . Journal of Zhejiang A&F University, 2018, 35(4): 771-777. doi: 10.11833/j.issn.2095-0756.2018.04.024
[3]	YU Xiao, PENG Yan, XU Qiufang. Water holding capacity and nutrient retention with bamboo sawdust regenerated super absorbent polymers . Journal of Zhejiang A&F University, 2017, 34(3): 473-483. doi: 10.11833/j.issn.2095-0756.2017.03.013
[4]	WANG Aijuan, HONG Wenying, WU Yanjun, LI Agen, ZHANG Zhouna, XU Zhangjie. Quantitative population characteristics and a prediction model for Melanographia flexilineata from Tangqi, Zhejiang . Journal of Zhejiang A&F University, 2016, 33(4): 712-717. doi: 10.11833/j.issn.2095-0756.2016.04.022
[5]	WANG Yu-lan, LIU Ai-hua, ZHANG Jing-wen, ZHAO Bian-jian, YUE Zhao-yang, ZHANG Xin-ping, TANG Li. Coincidence level in spatial distribution of Eulecanium gigantea and Blastothrix sericae . Journal of Zhejiang A&F University, 2012, 29(5): 799-802. doi: 10.11833/j.issn.2095-0756.2012.05.026
[6]	YAN Shao-jun, ZHU Xi, YU Yi-wu. Construction techniques for the city heronries in Central China . Journal of Zhejiang A&F University, 2006, 23(6): 697-700.
[7]	YU Xue-jun, LIN De-fang, WU Shou-guo, LIN Huan-zhong. Comparison of the rapid propagation techniques of Dendrocalamopsis oldhami . Journal of Zhejiang A&F University, 2005, 22(2): 235-237.
[8]	LIN Qing-lan. Experiment on three biological pesticides preventing and controlling Dendrolimus houi . Journal of Zhejiang A&F University, 2005, 22(1): 70-72.
[9]	ZHU Yu-qiu, ZENGYan-ru, XU Yuan, LI Mei-fei, YE Yi-qun. Techniques for transplanting mini color-leaved plantlets of Caladium bicolor grown in test-tube . Journal of Zhejiang A&F University, 2004, 21(2): 231-234.
[10]	LI Zhang-ju, QIAN Lian-fang, YU Wei-wu. Study on grafting in Ginkgo biloba . Journal of Zhejiang A&F University, 2002, 19(3): 235-239.
[11]	SU Zeng-jian, YU Shu-quan, ZHOU Guo-mo. Review of water and soil conservation technology on commercial forest of ecotype in Zhejiang . Journal of Zhejiang A&F University, 2002, 19(4): 440-445.
[12]	CHAI Shou-quan, XU Guo-lian, XIE Kai-li, ZHAO Pei-xian, FENG Yong-gang, LI Pin-jun. Bio-ecological characteristics of Dendrolimus punctatus tehchangensis in Yunnan Province . Journal of Zhejiang A&F University, 2002, 19(3): 277-281.
[13]	ZHU Jin-ru, YUAN Wei-gao, JIANG Bo, QI Lian-zhong, WU Fa-rong, SHENTU Fu-jun. On nodal scar control of stem for poplar . Journal of Zhejiang A&F University, 2001, 18(1): 32-35.
[14]	Sun Wei, Dong Lingen, Hu Jiaqi, Yu Qiong hua. Prediction of Emergence Size of Overwintering Dendrolimus punctatus by Fuzzy Comprehensive Evaluation. . Journal of Zhejiang A&F University, 1998, 15(1): 76-80.
[15]	Yu Shuquan, Chen Linwu, Wang Jiang, Wang Peng. Establishing Techniques on Eco-economics Type Protection Forest System in the Chuanjiang Valley:Layout for Key Shelterforests. . Journal of Zhejiang A&F University, 1996, 13(3): 354-358.
[16]	Yuan Ronglan, Tang Cai, Yu Qilong. Spatial Distribution Pattern and Sampling Methods of Petrova cristata Larvae. . Journal of Zhejiang A&F University, 1996, 13(4): 489-496.
[17]	. . Journal of Zhejiang A&F University, 1995, 12(1): 119-120.
[18]	Yang Zaikun, Shen Chaodong, Xu Xiaohua, Zhang Yinchao. Flowering Techniques of Gladiolus hybridus in winter. . Journal of Zhejiang A&F University, 1994, 11(3): 258-263.
[19]	Fang Zhigang, Mao Chaoming. Spatial Distribution Patterns of the Larvae of Golden Larch Olethreutid Moth . Journal of Zhejiang A&F University, 1993, 10(2): 228-233.
[20]	Zhu Zhijian, Tu Yonghai, Xu Sishan, Liu Zhenyong. Spatial Distribution Pattern of Hippota dorsalis (Stal) and Its Application . Journal of Zhejiang A&F University, 1993, 10(1): 115-121.

References
Proportional views

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Get Citation

PDF

XML

Article views(1218) PDF downloads(263) Cited by()

Proportional views

Techniques of forecasting and predicating Dendrolimus houi

1. Forest Disease and Pest Control Station of Lishui City , Lishui 323000, Zhejiang , China;

2. Forest Disease and Pest Control Station of Suichang County , Suichang 323300, Zhejiang , China

Received Date: 2002-05-08
Rev Recd Date: 2002-11-25
Publish Date: 2003-02-20

Key words:

Abstract: By raising and observing the larva of Dendrolimus houi , it is known that the larva is 7 instars .Their average appetite is 104.4 g and increases distinctly after 4 instars .Therefore , the prevention and control of the insect shall be carried out before 4 instars .The 1 ～ 2 instar larva has a high death rate , accounting for 30 %～40 %.The death rate decreases after 3 instars and their population is stable .It is the best opportunity to carry out forecast and investigation .The formula to calculate the leave quatity by the diameter of Cryptomeria fortuneicrown is lgW =a +blgD .The formula establishes the grade of Cryptomeria fortunei crown and insect pest .The formula of the distribution pattern of the insect is ＊m =14.275 7 +1.124 0m .The formula for the predication of population of insect number in a tree by the average insect number in two lower branches is y =9.754 4x1.157 4 .These formulas conform to the requirement for precision and promote the working efficiency .

ZHAO Ren-you, XU Zhen-wang, LUO Song-gen, YANG Shao-li. Techniques of forecasting and predicating Dendrolimus houi[J]. Journal of Zhejiang A&F University, 2003, 20(1): 49-53.

Citation:

ZHAO Ren-you, XU Zhen-wang, LUO Song-gen, YANG Shao-li. Techniques of forecasting and predicating Dendrolimus houi[J]. Journal of Zhejiang A&F University, 2003, 20(1): 49-53.

HTML

DownLoad: Full-Size Img PowerPoint

Return

Techniques of forecasting and predicating Dendrolimus houi

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views

Techniques of forecasting and predicating Dendrolimus houi

1. Forest Disease and Pest Control Station of Lishui City , Lishui 323000, Zhejiang , China;

2. Forest Disease and Pest Control Station of Suichang County , Suichang 323300, Zhejiang , China

HTML

Catalog

Techniques of forecasting and predicating Dendrolimus houi

Abstract

Relative Article

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views

Techniques of forecasting and predicating Dendrolimus houi

1. Forest Disease and Pest Control Station of Lishui City , Lishui 323000, Zhejiang , China; 2. Forest Disease and Pest Control Station of Suichang County , Suichang 323300, Zhejiang , China

HTML

Catalog

Export File

Citation

Format

Content

1. Forest Disease and Pest Control Station of Lishui City , Lishui 323000, Zhejiang , China;

2. Forest Disease and Pest Control Station of Suichang County , Suichang 323300, Zhejiang , China