Hackberry Budgall Psyllid – Pachypylla celtidisgemma

Hackberry Budgall Psyllid (Pachypylla celtidisgemma)

Latin Name: (Pachypylla celtidisgemma)

Common Name: Hackberry Budgall Psyllid


  • Galls appear as tissue swellings on leaves or petioles that range in size from 1/8 to 1/4 inch.
  • The pale, growing psyllid within may be seen carefully cutting them apart.
  • Adults look like tiny (3/16 inch long) cicadas. They can become plentiful in the fall when they are attracted to homes and crawl over window covering in search of overwintering habitat.

Hosts plants:

Hackberries, sugarberry (Celtis laevigata) , American or Commom hackberry (Celtis occidentalis ), and Net-leaf hackberry (Celtis reticulata ) are host plants.


They are found throughout the range of its four hackberry hosts and throughout North America.

Damage insect caused by Hackberry Budgall Psyllid:

Unlike the other common hackberry psyllids, the budget psyllid spends the winter in the gall. Late in the spring, adults emerge and deposit eggs near the emerging buds. The buds enlarge and create a gall when the nymphs feed on them. The spirits grow throughout the year in the gall, and there is just one generation.

Description about root, tuber, and bulb feeders:

Bulb mites can invade root, tuber, and bulb like onion and garlic in the field and storage. They may survive in the wild on decomposing foliage until it is degraded. In the low desert, these pests are not yet a concern. Bulb mites can impede plant development and restrict the availability of root and tuber foods such as onions and garlic. These mites also induce bulb rot in storage by piercing the outer layer of bulb tissue and allowing rot-causing microorganisms to gain passage.

Acarid Mites:

Bulb mites are bright, creamy-white, bulb-shaped, and belong to the Acaridae family. These mites have brown legs and are 0.02 to 0.04 inches (0.5–1 mm) in length. These mites are found in clusters under the root plate of onion bulbs and garlic cloves, and they live in damaged regions. Females deposit eggs individually or in groups, which is Up to 100 eggs on the bulb surface’s damaged or decaying tissue.

Eriophyid Mites:

The dry bulb mites and wheat curl mites are more minor and longer than the globular bulb mites. These mites are tiny white wormlike animals with around 0.01 inches (0.25 mm). They have four legs, all of which are close to the head. The dry bulb mite eats liliaceous bulbs like tulips in addition to onions and garlic. Wheat curl mites primarily consume cereal grains and wild grasses, but they also occasionally eat roots, tubers, and bulb-growing vegetables.

Life History and Habits:

In the spring, the last instar nymphs emerge from the galls and molt to the adult stage when the host trees’ new leaves appear. The final instar nymph’s apex of the abdomen is furnished with highly sclerotized teeth, which it utilizes to cut its way out of the woody gall by wagging the tip of the stomach.