تشخيص امراض النبات

تشخيص امراض النبات about agricultural equipment

تشخيص الامراض النبات diagnostic plant diseasesعلم النبات فيزيولوجيا النبات علم الحشرات التشخيص موسوعة أمراض النبات atla...
09/05/2017

تشخيص الامراض النبات diagnostic plant diseasesعلم النبات فيزيولوجيا النبات علم الحشرات التشخيص موسوعة أمراض النبات atlas plants disease

بياض زغبي ( Downy mildew)اخطر مرض فطري التي تصيب نباتات بيوت البلاستيكيه او بيوت المحميه . صورتان توضحان الحالة بدائيه ...
09/05/2017

بياض زغبي ( Downy mildew)اخطر مرض فطري التي تصيب نباتات بيوت البلاستيكيه او بيوت المحميه . صورتان توضحان الحالة بدائيه و حالة متقدمه مع تقدير الشكر
downy mildew is a dangerous fungi disease effect to the green houses or plastic houses plants .these two pictures show us beginning and advanced diseases

03/05/2017

be careful to zicaa virus because its so dangerous and the vector of this disease is a mosquito

the problem is early planting
06/04/2017

the problem is early planting

كيف يتم تنظيف أوراق نباتات الظل المنزلية ؟تعتبر عملية تنظيف أوراق نباتات الظل المنزلية من عمليات الخدمة الهامة التي تقدم...
02/04/2017

كيف يتم تنظيف أوراق نباتات الظل المنزلية ؟

تعتبر عملية تنظيف أوراق نباتات الظل المنزلية من عمليات الخدمة الهامة التي تقدم لها وذلك للتخلص من الاتربة والأوساخ العالقة في الاوراق والتي قد تؤثر في نموها نتيجة غلق مسام الورقة والتأثير على العمليات الفسلجية في الورقة النباتية والتي من اهمها التركيب الضوئي والنتح ، كما ان التخلص من الاتربة والأوساخ ضروري للحفاظ على جمال الورقة النباتية ولونها الاخضر الناصع . يتم تنظيف أوراق النبات من الأتربة وبيض الحشرات باستخدام قطنه مبللة بماء دافئ ، خاصة السطح السفلي للأوراق كل أسبوع حتى لا تسد المسام والثغور.

كيف يتم تنظيف الاوراق ؟
في حالة كون أوراق النباتات كبيرة وعريضة تبلل قطعة قماش ناعمة قطنية بالماء الفاتر وتمسح بها الأوراق مع اسناد الورقه من الاسفل باليد الاخرى حتى يتم حمايتها من التمزق .
لا يتم استخدام الزيوت ابدا للتنظيف والتلميع ، حتى لا تتسبب في غلق مسام الورقة
اما إذا كان سطح ورق النبات مليء بالتعرجات يمكن تنظيفه بفرشاة ناعمة للتخلص من الغبار الملتصق على السطح .

اعراض فايروسي .يجب ازالة من الحقل virus diseases. eliminate from field
02/04/2017

اعراض فايروسي .يجب ازالة من الحقل
virus diseases. eliminate from field

bery to 3elaj crown gall bkey temashay qemati dareke bke ! aw bactiriayay sabebi am nexoshia aminitawa la naw ax bo ma...
14/10/2016

bery to 3elaj crown gall bkey temashay qemati dareke bke ! aw bactiriayay sabebi am nexoshia aminitawa la naw ax bo maway 2 sal leber awe her nebatiky tr law robere bit m3arze bo em nexoshia
bo labrdni crown gall abi la nebateka anko la planeka la bbrit o bashi tosh bo bsotinrit
amash chend kortiak lasar crown gall
crown gall chia o 3ilagekey o xoparastn

What is Crown Gall?

The galls are caused by a bacterium (Rhizobium radiobacter formerly Agrobacterium tumefaciens)lives in the soil and enters the plant through injuries. Once inside the plant, the bacterium injects some of its genetic material into the host’s cells

How to Fix Crown Gall

1- avoid planting any other susceptible plants in the area
2-remove and destroy the infected plant
3-Prevention is an essential aspect of dealing with crown gall.
4-Inspect plants carefully before you buy them
5-void wounds near the ground as much as possible
6-debris flies away from susceptible plants
7-chemical eradicant called Gallex

l

13/10/2016

the most important steam diseases are
1-die back
2-gummosis
3-stem gall
4-verticium wilt
5- stem bleeding
6- canker

Whiteflies?the danger insect in the world also known as aleyrodidae, are soft-bodied, winged insects closely related to ...
10/10/2016

Whiteflies?the danger insect in the world
also known as aleyrodidae, are soft-bodied, winged insects closely related to aphids and mealybugs. They can be found in most any region, but they are so tiny that they are usually camouflaged.
They are active during the daytime
we’ll see whiteflies in mid- to late-summer when it gets warm; they are also a common pest in greenhouses

Whiteflies suck plant juices and, in turn, produce a sticky substance known as honeydew. Honeydew left on its own can cause fungal diseases to form on leaves.

white flies feed under the leave and we must cheek under it
we may also find eggs also laid on the undersides of leave
when the female laid an egg she can laid about 400 eggs and may hatch it between 6-14 days
how control whiteflies <
1-yellow trap
2-insecticide (when temperature is cooler such as morning ,late in the day
3-bio control (insect )
4-remove all egg nymph and larvae by handle if these routes are fails
adeeb mohamad

BLACK ROT - It is a disease of cultivated plants, which occurs due to humid and damp weather conditions. This disease is...
08/10/2016

BLACK ROT - It is a disease of cultivated plants, which occurs due to humid and damp weather conditions. This disease is characterized by the darkening and decaying of leaves of fruit and vegetable plants. It is commonly found on grape vines, cabbage, orchids, and many more. Grape black rot is a disease caused by Guignardia bidwellii that specifically affects grape vines.

this image show us two diseases one of them is powdery mildew and other is downy mildew
08/10/2016

this image show us two diseases one of them is powdery mildew and other is downy mildew

What Is Powdery Mildew?There are many different species of the fungal disease powdery mildew, and each species attacks a...
08/10/2016

What Is Powdery Mildew?
There are many different species of the fungal disease powdery mildew, and each species attacks a variety of different plants. Unlike many other fungal diseases, powdery mildew does not require moisture to infect plants. It also survives well in warmth. This means that it can infect your plants under a wide variety of conditions.

When the fungus begins to take over one of your plants, the mildew that forms is made up of many spores. These spores carry the infection to other plants through the wind. Powdery mildew can slow down the growth of your plant. In some cases, if the infection is severe enough, powdery mildew can kill your plants.

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