Suggestions for Controlling Rosette, Insects and Diseases on Commercial Pecans.

8 p

Field Guide to the Insects and Mites Associated with Pecan

132 pages, 140 color photographsThis field guide helps pecan growers identify some of the insects and mites commonly seen in pecans, both pests and natural enemies. Proper identification is important in making a management decision. The book is divided into sections on nut feeders and natural enemies

Controlling the Pecan Nut Casebearer

6 pp., 8 photosOne of the most important nut-infesting pests of pecan is the pecan nut casebearer. This publication describes the casebearer and its seasonal cycle, and offers advice on scouting, trapping, insecticide selection, and biological control

Managing Insect and Mite Pests of Commercial Pecans in Texas

20 pp., 12 photos, 12 tables, 1 chartBiological and chemical control measures are described for 12 pecan insect and mite pests, including phylloxera, pecan nut casebearers, spider mites and others. The publication provides information about the biology of each pest as well as a seasonal pest profile

Hessian Fly in Texas Wheat

The Hessian fly came from Russia and may have been introduced into the United States during the Revolutionary War. It has since spread to many parts of the country. By 2005, more than 67 counties in Texas reported Hessian fly infestations. This publication details the Hessian fly life cycle, describes the injury it causes to wheat, and explains management strategies for combatting the pest

Controlling the Pecan Weevil

6 pp, 6 photos, 1 figureThe pecan weevil is a key pest of pecan in portions of Texas. This publication discusses the biology of the pest and how to use integrated pest management practices for control. Photographs illustrate adult and larval stages and signs of pecan nut damage

A map of the day-night contrast of the extrasolar planet HD 189733b

"Hot Jupiter" extrasolar planets are expected to be tidally locked because they are close (<0.05 astronomical units, where 1 AU is the average Sun-Earth distance) to their parent stars, resulting in permanent daysides and nightsides. By observing systems where the planet and star periodically eclipse each other, several groups have been able to estimate the temperatures of the daysides of these planets. A key question is whether the atmosphere is able to transport the energy incident upon the dayside to the nightside, which will determine the temperature at different points on the planet's surface. Here we report observations of HD 189733, the closest of these eclipsing planetary systems, over half an orbital period, from which we can construct a 'map' of the distribution of temperatures. We detected the increase in brightness as the dayside of the planet rotated into view. We estimate a minimum brightness temperature of 973 +/- 33 K and a maximum brightness temperature of 1212 +/- 11 K at a wavelength of 8 microns, indicating that energy from the irradiated dayside is efficiently redistributed throughout the atmosphere, in contrast to a recent claim for another hot Jupiter. Our data indicate that the peak hemisphere-integrated brightness occurs 16$\pm$6 degrees before opposition, corresponding to a hot spot shifted east of the substellar point. The secondary eclipse (when the planet moves behind the star) occurs 120 +/- 24 s later than predicted, which may indicate a slightly eccentric orbit.Comment: To appear in the May 10 2007 issue of Nature, 10 pages, 2 black and white figures, 1 colo