. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Fig Papyrus species: showing spring curved under the body. sudden rise of water on meadow or bog land drives them out of their hiding-places, and they leap about on its surface for a time as readily as they do on land. I have seen, on cranberry bogs reflowed late in May, square rods of the surface so densely cov- ered that nothing of the water was visible. They are often found in damp cellars, on any vegetable matter stored there, and are sometimes ac- cused of promotin
. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Fig Papyrus species: showing spring curved under the body. sudden rise of water on meadow or bog land drives them out of their hiding-places, and they leap about on its surface for a time as readily as they do on land. I have seen, on cranberry bogs reflowed late in May, square rods of the surface so densely cov- ered that nothing of the water was visible. They are often found in damp cellars, on any vegetable matter stored there, and are sometimes ac- cused of promoting decay. In the fields a cut potato placed underground piay attract dozens of specimens that feed upon the juices of the raw sur- face, and they have been therefore ac- cused of producing scabby potatoes. They are of all colors, but usually slate-gray or yellowish, the markings sometimes quite pretty and distinct. As a matter of fact, these insects are never injurious. Healthy vege- table tissue is not attacked by them, and their mouth parts are adapted for feeding on soft or moist tissues only : hence a decayed or bleeding spot at- tracts them. They are sure to occur in manure and on manured land, and can be kept out to a large extent by using only mineral
Size: 2886px × 1732px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomology, bookyear1
