This is common practice because North American grape species are resistant to phylloxera, a root louse that eventually kills the vine.

這是因?yàn)槊乐奁咸褬涞母靠梢缘挚箤?dǎo)致葡萄藤死亡的根瘤蚜蟲。

The grape is the fruit preferences, but serious grape phylloxera, has been identified as the main quarantine objects at home and abroad.

葡萄是人們喜好的水果之一成熟丰满熟妇高潮XXⅩ，但葡萄根瘤蚜危害嚴(yán)重久国产在线，已被列為國內(nèi)外主要檢疫對(duì)象。

Research on the occurrence of grape phylloxera symptoms, pathogen characteristics, infection process, the occurrence of the conditions, as well as control methods, thereby enhancing the production of grapes.

研究葡萄根瘤蚜發(fā)生的癥狀国产在线A级在线视频、病原特征jiZZjiZZjiZZjiZZ免费看、侵染過程、發(fā)生條件9999视频免费视频、以及防治方法美女裸体污污18禁免费APP，從而提高葡萄的產(chǎn)量。

In this study, laboratory bioassays were carried out for rapid initial evaluation on the resistance of 10 grape rootstocks and 18 cultivars to Chinese biotypes of grape phylloxera, Daktulosphaira viticola. The survival ratio, developmental duration, egg number and index for population age constitution were evaluated.

為了檢測我國葡萄品種和砧木對(duì)中國生態(tài)型葡萄根瘤蚜Daktulosphaira viticola的抗性免费视频高清日韩精品视频在线播放，在實(shí)驗(yàn)室條件下采用離體根接種法鑒定了10個(gè)葡萄砧木三级片免费一区、18個(gè)葡萄栽培品種，測定了根瘤蚜存活率玖玖视频玖玖在线播放、發(fā)育歷期韩国三级2022最新中字幕在线观看、產(chǎn)卵量、種群齡期結(jié)構(gòu)指數(shù)和成蟲大小等指標(biāo)国产一级婬片A片AAA毛片鲁鲁。

To probe into either the attractiveness to or avoidance from phylloxera of grape rootstocks and cultivars with different tolerance, as well as into the volatile components from their roots, the method of invitro root segment culture was used to investigate the selectivity of Phylloxera viticola Fitch to the roots of grape rootstocks '5BB' and '140Ru' and cultivar 'Kyoho'.

為了探討不同抗性水平砧木及品種對(duì)根瘤蚜吸引及驅(qū)避效應(yīng)以及鑒定揮發(fā)性物質(zhì)組分99热在线精品播放，采用離體根段培養(yǎng)法測定葡萄根瘤蚜Phylloxera viticola Fitch對(duì)砧木5BB，140 Ru及栽培品種巨峰的選擇性18成年大片免费网站，發(fā)現(xiàn)根瘤蚜對(duì)栽培品種巨峰的根段具有很強(qiáng)的選擇性国内自拍区在线下载网站视频播放器，至接種后3d，67.13%的根瘤蚜優(yōu)先選擇巨峰久久不射黄色网站；而對(duì)5BB和140 Ru的選擇性卻很差春雨直播视频在线观看免费高清，分別有15.29%和17.58%的根瘤蚜選擇5BB及140 Ru。

grape phylloxera：葡萄根瘤蚜

grape owlet moth ==> 葡萄虎蛾 | grape phylloxera ==> 葡萄根瘤蚜 | grape picker ==> 葡萄粒摘取機(jī)