Feeding by C. pulicaria causes irregular, fine, white scratches on the leaves of maize plants (Poos and Elliott, ). The insect eats through the epidermis of the. Genus Chaetocnema. Species pulicaria (Corn Flea Beetle). Synonyms and other taxonomic changes. Chaetocnema pulicaria F.E. Melsheimer. Description The adult is a very small, smooth, shiny, roundish, black beetle. The hind legs are distinctly enlarged and thickened, and the beetles jump readily.

Author: Zulushura Zulkikazahn
Country: Maldives
Language: English (Spanish)
Genre: History
Published (Last): 4 May 2014
Pages: 413
PDF File Size: 20.19 Mb
ePub File Size: 11.13 Mb
ISBN: 873-9-71027-763-9
Downloads: 76672
Price: Free* [*Free Regsitration Required]
Uploader: Vilrajas

If the infestation is so severe that some plants are being killed, or if more than half of the leaves are whitish, it may be profitable to treat.

chaetocnemaa Contributors own the copyright to and are solely responsible for contributed content. A sum of and above for the three months indicates that the wilt phase of Stewart’s disease will probably be severe; a sum of indicates a moderate wilt infection, ranging from light to severe, depending on the area.

This index is based on the suin of the average monthly temperatures for December, January, and February. Views Read Edit View history.

Temporal distribution of Chaetocnema pulicaria (Coleoptera: Chrysomelidae) populations in Iowa.

The effects of Stewart’s wilt on yield are described in detail in the datasheet on P. Knowledge Bank home Change location. Dill pulucaria that grass growing in areas near to where maize is to be planted the following year should be burned in order to control flea beetles. However, in years when flea beetles are abundant and the disease is widely disseminated, some varieties of corn will wilt and the plants may die before tasseling. Eggs hatch in days. Chaetocnema hortensisalso known as the corn flea beetle [1] and clover flea beetle[2] is a species of flea beetle from Chrysomelidae family, found in TexasUSA [3] and Canada.


The disease organism is Pantoea stewartii. Control The Winter Temperature Index is useful in indicating the probability of wilt infection for the coming season.

Chaetocnema pulicaria (corn)

Click the contributor’s name for licensing and usage information. In most regions of the USA, maize planted earliest in the spring is most severely damaged by flea beetles and Stewart’s wilt.

Like most websites we use cookies.

If the average daily temperature during this period is above freezing, flea beetles survive and Stewart’s wilt is likely to be severe on susceptible hybrids. Retrieved from ” https: Please consider a year-end gift to BugGuide!

Chaetocnema pulicaria – Wikipedia

The bacterium may move systemically through susceptible plants Braun, but in resistant plants, movement of P. Because the corn-flea beetle is verv sensitive to temperatures, a criterion to predict the extent of overwintering heetles has been developed called the Winter Temperature Index.

Corn Flea Beetle Damage. If you need expert professional advice, contact your local extension office. Upcoming Events Discussioninsects and people from the BugGuide Gathering in VirginiaJuly Photos of insects and people from the gathering in WisconsinJuly Photos of insects and people from the gathering in VirginiaJune Periods that ranged from 14 to 32 d were observed in and when C.

They also transmit Stewart’s wilt ; by chateocnema the leaf tissue from the plant, they open a wound which allows the disease to begin spreading from plant to plant. Remarks May damage corn crops; important in parts of the Midwest where it may transmit the bacterial agent of Stewart’s wilt of corn 3.


Infrom August to the end of the corn growing season, significantly more C. While in their larval stage, their small, worm-like bodies are white. Not much is known about the larvae, but they probably feed on the roots of grass plants. The eggs hatch in 7 to 14 days into larvae. This is to ensure that we give you the best experience possible. This disease infests the water-conducting tissues of the plant. The females lay eggs in soilwhich has plants growing nearby.

Type – MCZ, Harvard.

IPM : Field Crops : Corn Flea Beetle (Chaetocnema pulicaria)

Yield reduction is significantly higher due to early season systemic infection in susceptible and moderately susceptible hybrids Suparyono and Pataky, ; Freeman and Pataky, The larvae feed especially on plants’ rootscausing serious damage. This new knowledge concerning the seasonal dynamics of C pulicaria will help to improve management recommendations for Stewart’s disease of corn, caused by the bacterium Pantoea stewartii, and that is vectored by C pulicaria.

Cookies on Plantwise Knowledge Bank Like most websites we use cookies. Maize seedlings are most susceptible to damage, but moving the planting date may allow them to escape periods when flea beetle populations are high. When infection occurred at later growth stages V7 to V9 or lateryield was not as greatly reduced.

Contributors own the copyright to and are solely responsible for contributed content.