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These invasive scale insects, Citrophilus mealybugs (Pseudococcus calceolariae), when disturbed, secrete a red liquid as a means of defense. Note the two droplets on the large mealybug in the center. Photo by Q. Holdman. From the USDA website, used under open source permissions.

A Closer Look – Bonsai Pests Part 2, Scale

Scale are another ubiquitous garden variety pest in temperate regions. Scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale, with many...
by heather hartman
2

 

 
USDA image from wikipedia, used under open source permission The green apple aphid (''Aphis pomi'') *A, adult sexual female *B, adult male *C, young female *D, female laying an egg *E, eggs, which turn from green to block after they are laid. (Enlarged about 20 times)

A Closer Look: Bonsai Pests – Part 1 – Aphids

Aphids are a ubiquitous garden variety pest in temperate regions, as irritating on our tomatoes as they are on our bonsai. Also called plant lice and greenflies, Aphids are part of the insect superfamily of Aphidoidea (which pr...
by heather hartman
1

 

 
Photograph by Peter Evans

Acer buergerianum

Scientific Name: Acer buergerianum Common Names: Trident Maple, three pronged maple, san jiao feng, Chinese ahorn, tokaede Cultivars: Acer b. formosanum, the Taiwan or Formosan Trident. ‘Eastwood Cloud’ – Almo...
by heather hartman
1

 
 
Photograph and Bonsai by Walter Pall Japanese Maple (Acer palmatum) Height: 90 cm, 35.43 inches Pot: Derek Aspinall

Acer palmatum

Scientific Name: Acer palmatum Common Names: Japanese maple, smooth barked Japanese maple, kaede, momiji Cultivars: There are too many cultivars of Japanese Maples to list here. For a far more complete list, I highly recommend ...
by heather hartman
0

 

 
Jack Pine bonsai and photograph by Jerry Vlcek

Pinus banksiana

Scientific Name: Pinus banksiana Common Names: Jack Pine, Eastern Jack Pine, Black Jack Pine, Black Pine, Jerry Pine, Prince’s Pine, Princess Pine, Bank’s Pine, Banksian Pine, Hudson Bay Pine, Gray Pine (usually refers to P...
by heather hartman
1