maple bladdergall mite

(Vasates quadripedes)

Conservation Status
maple bladdergall mite
 
  IUCN Red List

not listed

     
  NatureServe

not listed

     
  Minnesota

not listed

     
           
           
           
 
Description
 
 

Maple bladdergal mite is about 1 500 to 1 125 long and invisible to the naked eye. It is most easily identified by the shape of the gall it produces and the plant species on which it is found. This mite is found exclusively on silver maple, red maple, and sugar maple.

The pouch-type galls first appear on the upper side of a leaf in late spring. They are solitary, though there are usually many galls on a single leaf. They are hollow and globe-shaped with a hairy opening on the underside of the leaf. They vary in size but may be up to 1 10 in height. They are green when they first appear, turning pinkish or red, and then finally black. The galls are unsightly but the tree is otherwise undamaged.

 
     
 

Size

 
 

Microscopic, about 1 125

 
     
 

Similar Species

 
  Maple bladdergal mite is the only mite that causes bladder galls on these host species. It is not found on other plant species.  
     
 
Habitat and Hosts
 
 

Silver maple, red maple, and sugar maple

 
     
 
Biology
 
 

Season

 
 

Several generations each year. The first galls develop late spring.

 
     
 

Behavior

 
 

 

 
     
 

Life Cycle

 
 

The adult overwinters in a crevice of the trunk or a branch. As leaf buds begin to swell in the spring the female emerges and begins feeding on a leaf bud. This causes the leaf to produce excess cells that rises above the leaf surface like a blister. The female then enters the hollow gall and deposits eggs. When the eggs hatch the young feed on the interior of the gall. In the summer the gall dries out. In fall the gall opens on the underside of the leaf. The adult emerges and searches for a site to overwinter.

 
     
 

Damage

 
 

Unsightly but not harmful to humans or host trees

 
     
 
Distribution
 
 

Distribution Map

 

Sources

7, 29, 30.
 
  5/25/2022      
         
 

Occurrence

 
 

 

 
         
 
Taxonomy
 
  Class Arachnida (arachnids)  
  Subclass Acari (mites)  
  Superorder Acariformes (mites)  
 

Order

Trombidiformes  
 

Suborder

Prostigmata (prostigs)  
  Infraorder Eupodina  
 

Superfamily

Eriophyoidea  
 

Family

Eriophyidae (gall and rust mites)  
 

Subfamily

Phyllocoptinae  
 

Tribe

Phyllocoptini  
 

Genus

Vasates  
       
 

Synonyms

 
 

 

 
       
 

Common Names

 
 

maple bladder gall mite

maple bladdergall mite

maple gall mite

 

 

 

 

 

 

 

 

 

 
 
Visitor Photos
 
           
 

Share your photo of this arachnid.

 
  This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Attach one or more photos and, if you like, a caption.
 
 

 

 
 

 

 
           
           
 
MinnesotaSeasons.com Photos
 
 

Leaf with bladder galls

 
    maple bladdergall mite   maple bladdergall mite  
           
    maple bladdergall mite   maple bladdergall mite  
           
 

Bladder galls

 
    maple bladdergall mite   maple bladdergall mite  

 

Camera

     
 
Slideshows
 
 
     
     

 

slideshow

       
 
Visitor Videos
 
       
 

Share your video of this insect.

 
  This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Attach a video, a YouTube link, or a cloud storage link.
 
 

 

 
     
     
       
       
 
Other Videos
 
  Bladdergall Mite (Eriophyidae) Damage to Maple Leaf
Carl Barrentine
 
   
 
About

Uploaded on May 19, 2010

Photographed at Rydell NWR, Minnesota (18 May 2010).

   
  Maple Gall Bladder and Mulberries
shootsandvines
 
   
 
About

Uploaded on May 6, 2010

Our maple tree has developed maple gall bladder. Mulberries on the tree. We have three trees. I'll be freezing this year and hopefully making some homemade wine.

   

 

Camcorder

       
 
Visitor Videos
 
       
 

Share your video of this insect.

 
  This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Attach a video, a YouTube link, or a cloud storage link.
 
 

 

 
     
     
       
       
 
Other Videos
 
  Bladdergall Mite (Eriophyidae) Damage to Maple Leaf
Carl Barrentine
 
   
 
About

Uploaded on May 19, 2010

Photographed at Rydell NWR, Minnesota (18 May 2010).

   
  Maple Gall Bladder and Mulberries
shootsandvines
 
   
 
About

Uploaded on May 6, 2010

Our maple tree has developed maple gall bladder. Mulberries on the tree. We have three trees. I'll be freezing this year and hopefully making some homemade wine.

   

 

 

Binoculars


Last Updated:

About Us | Privacy Policy | Contact Us | © 2022 MinnesotaSeasons.com. All rights reserved.