Basic Agricultural Study

Menu
  • Home
  • Agronomy
  • Soil Science
  • Horticulture
  • Crop Botany
  • Entomology
  • Plant Pathology
  • Genetics and Plant Breeding
  • Biochemistry
  • Agri-business and Marketing
  • Agricultural Chemistry
  • Agricultural Extension
  • Ag. Economics
  • Post-harvest Technology
  • Agro-forestry
  • Ag. Statistics
  • Farm Mechanics
  • Job Oriented Course
  • Blog
Home
Entomology
The gall of plant diseases [Cecidium]
Entomology

The gall of plant diseases [Cecidium]

Agriculturist Musa June 20, 2018

Contents

  • 1 The gall of plant diseases [Cecidium]
    • 1.1 Definition of gall of plant diseases or cecidium 
    • 1.2 Types of gall of plant diseases or cecidium  
    • 1.3 Some Gall producing Insects and Mites 

The gall of plant diseases [Cecidium]

Definition of gall of plant diseases or cecidium 

A gall or cecidium is usually defined as an abnormal plant overgrowth caused by the parasitic plant or animal.

Types of gall of plant diseases or cecidium  

▲ Phytocecidium: Caused by the parasitic plant.

▲ Zoocecidium: Caused by the animal. Gall forming mites and insect Mites Acarus, Eriophyes, Phyllocoptes. Insect

▲ Hymenoptera: Cynipidae (Gall wasps).

▲ Diptera: Agromyzidae (greenflies, blackflies, or whiteflies), Tephritoidea (gall flies),  Cecidomyiidae (gall midges), Chloropidae (grass flies).

▲ Homoptera: Aphididae (Chinese sumac aphid), Coccoidea (Scale insect), Psyllidae (Jumping plant lice).

▲ Besides, a few members of the Coleoptera and Lepidoptera can also produce gall. How insect produce gall

Gall insect → Immature stage → Stimulating substance → Stimulated host tissue → Over growth → Gall.

Example: Rice gall midge and Onion shoot of rice.

Some Gall producing Insects and Mites 

A. Insect 
 
Common name                             Scientific name                Gall producing site 
Rice gall midge                           Orseolia oryzae                        Stem
Mango leaf gall midge               Procontarinia matteiana           Leaf
Mango twig gall midge              Rhabdophaga mangifera          Twig
Mango bud gall psyllid              Apsylla cistellata                      Bud
Golden rod Gall Midge             Eurosta spp.                               Stem
Wooly Oak gall wasps               Callirhytis lanata                      Leaf
Mossy Rose Gall Wasp              Diplolepis rosae                       Leaf
Eastern spruce gall adelgid        Adelges abietis                         Twig
B. Mites 
1. Litchi mite ……………………. Aceria litchii ……………………….. Leaf.
2. Pear blister mite …………….. Eriophyes pyri …………………….. Leaf.
Share
Tweet
Pinterest
Email
Prev Article
Next Article

Related Articles

Chemical Methods of Integrated Pest Management (IPM)
Contents1 Chemical Methods of IPM (Integrated Pest Management) with Advantages …

Chemical Methods of IPM (Integrated Pest Management)

Basic Principle of pest control
Contents1 Basic Principle of pest control1.1 1. Understanding the agro-ecosystem:1.2 …

Basic Principle of pest control

About The Author

Agriculturist Musa

Agriculture is the key development in the rise of sedentary human civilization. As an agriculture student, I want to make a positive footprint in the young agriculturist community through this blog.

Leave a Reply Cancel Reply

You must be logged in to post a comment.

Basic Agricultural Study

About

This is a blog is about basic agricultural study. This blog helps those students who are want to achieve proper knowledge of basic agriculture degree B.Sc.Ag (Hons.). Read attentively and make yourself a good agriculturist and work for the nation.

Facebook page

Recent Articles

  • The 3 Basic Causes of Plant Diseases
  • Cucurbitaceae, Gramineae, Solanaceae: Features and importance
  • External Morphology of Tea, Rice, Wheat, Sugarcane
  • Structure of protein
  • Plant Adaptations: Definition and Classification
Copyright © 2021 Basic Agricultural Study

Ad Blocker Detected

Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by disabling your ad blocker.

Refresh