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Preliminary Study on Pepper Black Spot from Mengzi Yunnan Province(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年03
Page:
109-113
Research Field:
Publishing date:

Info

Title:
Preliminary Study on Pepper Black Spot from Mengzi Yunnan Province
Author(s):
ZENG Long-gang1; 2; LU Hai-ju1; WANG Dong1; ZHENG Xiao-lan3; YANG Jie1
(1.Department of Life Science and Technology，Honghe College，Mengzi，Yunnan 661199；2.Yunnan Pingbian Plant Protecting Station，Pingbian，Yunnan 661200；3.Environment and Plant Protection Institute，CATAS，Danzhou,Hainan 571737)
Keywords:
pepper black spot; Alternaria; identification; biological characteristics; screen fungicide
PACS:
-
DOI:
10.11937/bfyy.201503032
Abstract:
Taking pepper fruit of black spot as material,pathogen was isolated by streak plate method,it was identified by Koch’s postulates and morphology，and tested the biological characteristics and fungicide sensitivity by mycelium growth rate method.The results showed that pathogen of pepper black spot from Mengzi Yunnan province was caused by Alternaria sp..Optimum conditions for mycelial growth were maize agar (MA) medium，soluble starch as carbon source，glycine as nitrogen source，25℃，pH 8，full of light.58% metalaxyl?mancozeb and 50% iprodione wettable powder were the most sensitivity than other fungicides for the pathogen.This conclusion provided theoretical parameter for the control of pepper black spot.

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Last Update: 2015-03-03