问题:柑橘溃疡病通过()等方式进行传播。A、嫁接B、风雨C、昆虫D、枝叶接触
Monday, April 29, 2024
Friday, May 10, 2024
问题:以下哪类病原不会引起植物萎蔫性病害?()A、细菌B、真菌C、线虫D、支原体
Wednesday, August 16, 2023
Thursday, December 7, 2023
Friday, May 10, 2024
Monday, April 29, 2024
问题:化学农药防治园林植物病虫害的优缺点是什么?怎样发扬优点,克服缺点?
Wednesday, February 7, 2024
问题:柑橘溃疡病通过()等方式进行传播。A、嫁接B、风雨C、昆虫D、枝叶接触
Monday, April 29, 2024
Sunday, February 18, 2024
Monday, January 29, 2024
问题:胃毒剂主要用于防治哪类口器的害虫?()A、刺吸式B、虹吸式C、咀嚼式D、锉吸式
Friday, May 24, 2024
Monday, November 20, 2023
Monday, April 29, 2024
问题:以下哪种病害的病原是丝核菌?()A、仙人掌茎腐病B、菊花立枯病C、月季黑斑病D、水仙大褐斑病
Friday, May 24, 2024
Monday, April 29, 2024
Sunday, April 7, 2024
Tuesday, April 23, 2024
Monday, April 29, 2024
问题:以下哪项不符合天牛的生物学特性?()A、离蛹B、幼虫无足型C、全变态D、孤雌生殖
Monday, April 29, 2024
Sunday, June 18, 2023