Life Sciences Commons^™

Bulletin No. 138 - How To Control The Grasshoppers, E. D. Ball

UAES Bulletins

There is no longer any reason why a farmer or a community of farmers should allow their crops and meadows to be destroyed by swarms of grasshoppers. Our knowledge of their habits has increased and better methods of destruction are known, so that at the present time the grasshopper takes its place in the list of crop pests that can be controlled by those who desire to do so. In the old days when countless numbers of the Rocky Mountain locusts (M. spretus) settled down on the crops of the few scattering settlers of the plains or Intermountain region, there …

Bulletin No. 129 - Codling Moth Studies In 1911: The Driving Spray Under Excessively Wormy Conditions, E. D. Ball, W. M. Ball

UAES Bulletins

Spraying experiments against the codling moth were carried on upon the Smart orchard until the number of worms per tree was reduced to such an extent that no accurate comparisons could be made between different treatments. As a result of the work on this and other orchards, practically every commercial orchard in the valley was by this time well sprayed and the worms reduced to a point where one driving spray per season would keep them under control.

In the meantime a number of questions arose which required very wormy conditions to adequately investigate. Search was therefore made for orchards …

Bulletin No. 110 - The Alfalfa Leaf-Weevil, E. G. Titus

UAES Bulletins

The alfalfa leaf-weevil (Phytonomus murinus Fab.) which has during the last three years been doing considerable damage in the central part of this State, is a European insect which by some means unknown has been introduced in to Utah. The species appears to be not uncommon throughout Europe and parts of Asia and Africa. It belongs to the large order of hard-shelled insects called beetles (Coleoptera) and in a group generally called snout-beetles (Family Curculionidae). To this same group belong many of our most serious pests, such as the plum curculio, cotton boll-weevil and strawberry weevil.

It occurs over all …

Bulletin No. 95 - Codling Moth Work In 1904: The Relative Value Of Early And Late Sprays, E. D. Ball, E. G. Peterson

UAES Bulletins

The codling moth continues to be the most s serious pest of the Utah horticulturist and was therefore made the main subject of investigation by the Entomological Department for the season of 1904.

In spite of the immense amount of work that ha been done on this subject by various entomologists in this and other countries, several vital points still remain unknown and many more that have been worked out for other localities must be verified and adapted to our conditions.

Bulletin No. 87 - The Codling Moth, E. D. Ball

UAES Bulletins

The codling moth has been in the State of Utah for over twenty-five years and is now injuriously abundant in every apple-growing section. It is by far the worst pest with which the fruit grower has to contend. In fact, it usually does more damage than all the other fruit insects put together.

It occurs throughout every apple-growing region of the United States, and is found in almost every country where the apple is grown, destroying from one-fourth to three-fourths of the apple crop where no effort is made to check its ravages. Dr. Howard the United States Entomologist, recently …