معلومات قصير موضوع
انجليزي بحث تقرير بالانجليزي باللغة الانجليزية انشاء
موضوع عن الحيوانات الاليفة وانواعها اين تعيش ماذا
ياكل مدة حياتها اسماء صغارها
تعبير عن الجمل
بالانجليزي
تعبير كتابي عن وصف حيوان اليف عبارات قصيره للاطفال
information about paragraph معنى
برزنتيشن
معلومات بسيطه اسم نطق كلمة معنى كلمة برجراف حيوان مفترس
لاحم عاشب اليف متوحش وحيش الغابة موسوعة عالم الحيوانات برمائي كل شيئ عن تزاوج انواع الانجليزي
الشائعة معنى كلمة بالانجليزي اختصارات
معلومات عن الحيوانات
بالانجليزي موضوع عن الحيوانات الاليفة
بالانجليزي دورة حياتها
تغذية الحيوانات والحشرات على ماذا تتغذى كيف تتغذى الموسوعة تتذوق
الطعام تصنيف
فوائد الجنس للصف الرابع للصف السابع
الاول الثاني الثالث الخامس السادس الثامن التاسع كتابة ذكر اضرار معلومات طائر انواع تربية قصة صفات
Aphidians are
insects of the superfamily Aphidoidea
Aphidids
(Aphididae) are insects of the superfamily of aphids (Aphidoidea), which are of
the order Hemiptera. There are more than 1350 species in North America, 80 of
which are pests that attack crops.
They are insects
whose parthenogenetic females can lay fertile eggs without mating. The majority
of the aphids are females, which allows them to quickly increase their
population when conditions are favorable.
They are
recognizable by their soft pear-shaped body, which carries two small tubes on
the posterior, and long antennae placed between the small eyes. They have all
these tubes, called cornicles, that are used to produce pheromones to alert
other members of a predator's approach, and the sticky liquid that comes out
can also discourage his attacker.
Aphidians
(Aphididae)
The cycle begins
with a female laying her eggs on a plant. The eggs will overwinter and spend
the winter on it, to hatch the following spring. The larvae feed on the host
plant, and after several moults of an incomplete metamorphosis, the larva
becomes a female that retains its eggs to give young already formed. These
young will in turn become adults, some of whom are males, and they will mate
with the females to produce fertilized eggs that will overwinter. And the cycle
starts again.
Aphis chloris
(Aphidinae)
Aphis chloris
(Aphidinae)
Depending on the
species, some only attack a single plant species, and others will start the
cycle on a plant family to change later during larval maturation. They are red,
yellow, green, black ... depending on the species, and some of the subfamily
Eriosomatinae are feathery once adult.
Prociphilus
(Eriosomatinae)
Prociphilus
(Eriosomatinae)
The mouthparts
are made to prick the stems and suck sap from the plant. They are pests that in
large numbers can harm flowering plants and crops. They are also a vector of
virus transmission that can affect the plants they attack.
Aphids maintained
by ants
Aphids maintained
by ants
A large number of
aphids will excrete a sweet material that attracts the ants that love it. These
will keep them and protect them, as is done for a livestock farm. They will
even move them to another plant if the aphid does not produce enough juice. It
is a symbiosis that will benefit both species.
The larvae are
prey to many carnivorous insects, such as ladybugs, lacewings, jumping spiders,
birds ... Like many other pests, liquid soap mixed with water is used to water
the foliage of the plants will help to move them away.
They are small,
very slow, the majority do not have wings, and they can not jump. Nevertheless,
as they are very small insects, the wind can blow them at great distances,
which allows them to colonize other plants.
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