Download the prepared research on alfalfa leaf weevil pest in PowerPoint file format

Download the prepared research on alfalfa leaf weevil pest in PowerPoint file format

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مشخصات تحقیق آماده در موردLeaf weevil pest of alfalfa به شرح زیر می باشد :

• عنوان تحقیق :Leaf weevil pest of alfalfa
• فرمت فایل : PowerPoint (.ppt)
• قابلیت ویرایش : دارد
• چاپ : بدون مشکل در پرینت گرفتن
• تعداد اسلاید :27

اسکرین شات اسلاید های این تحقیق آماده در موردLeaf weevil pest of alfalfa

قسمتی از متن انتخاب شده از داخل فایل پاورپوینتی :

Alfalfa leaf weevil is one of the most important plant pests in alfalfa gardens and fields. This pest causes damage and reduces yield and quality of products due to feeding on alfalfa leaves. This article introduces alfalfa leaf weevil pest, attack symptoms, attack time, control and prevention methods.

معرفیLeaf weevil pest of alfalfa
The alfalfa leaf weevil is a small, green insect that feeds on alfalfa leaves. This pest belongs to the Aphididae family and the Aphis genus. Alfalfa leaf weevil usually attacks in summer and autumn and is most active at temperatures between 20 and 30 degrees Celsius.

علائم حمله
علائم حملهLeaf weevil pest of alfalfa عبارتند از:

ظاهر شدید چسبندگی برگ‌ها به یکدیگر که باعث کاهش عملکرد گیاه می‌شود.
پوشش سفید رنگ چسبنده بر روی برگ‌های یونجه.
خشک شدن برگ‌های یونجه و سقوط آن‌ها به زمین.
روش‌های کنترل
کنترل بیولوژیکی
Using natural repellants such as small insect repellants and natural ant repellants can help control the alfalfa leaf weevil pest.

Introduction: One of the important pests of alfalfa leaves is the alfalfa leaf weevil, which is prevalent in most of the alfalfa working areas of the country. The amount of alfalfa weevil damage in Iran has not been precisely determined, but it can be said that the percentage of all alfalfa pest losses is related to weevils. This pest is important throughout the year. Considering that in some years the damage of alfalfa weevils is not important from an economic point of view, it is necessary for the farmers to be familiar with management suggestions and recommendations not to use insecticides.
The complete insect of this pest is a relatively small red weevil with a length of approximately 1 millimeter wide. Its color changes from brown to gray to black.

فهرست مطالب

1مقدمه
2زیستشناسی
3چرخه زندگی
4سرخورطومی های بالغ
5خسارت
6مدیریت تلفیقی آفات
7استفاده از واریته مقاوم
8مبارزه شیمیا ئی
9نوع حشره كشها
10منبع

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