Insects Injurious to VegetablesO. Judd Company, 1907 - 262 páginas |
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Página viii
... Leaf - beetles - Flea - beetles - Blister beetles- Grasshoppers and related insects - White grubs- Wireworms - Aphides , plant - bugs and related insects -The red spider . CHAPTER VI INSECTS INJURIOUS TO ASPARAGUS 49-91 93-98 CHAPTER ...
... Leaf - beetles - Flea - beetles - Blister beetles- Grasshoppers and related insects - White grubs- Wireworms - Aphides , plant - bugs and related insects -The red spider . CHAPTER VI INSECTS INJURIOUS TO ASPARAGUS 49-91 93-98 CHAPTER ...
Página xi
... leaf- beetles are usually present , while much smaller holes occurring in great profusion over leaves usually betoken the presence of flea - beetles . Extremely large and irregular holes in leaves of older growth are made by ...
... leaf- beetles are usually present , while much smaller holes occurring in great profusion over leaves usually betoken the presence of flea - beetles . Extremely large and irregular holes in leaves of older growth are made by ...
Página xii
... beetle , while potato tubers are damaged by the potato tuber worm . Seed pods and similar coverings of seeds are attacked by numerous insects , such as the corn ear worm , cu- cumber beetles ... leaf - miner attack ; and the destruction of ...
... beetle , while potato tubers are damaged by the potato tuber worm . Seed pods and similar coverings of seeds are attacked by numerous insects , such as the corn ear worm , cu- cumber beetles ... leaf - miner attack ; and the destruction of ...
Página 7
... beetles , leaf - beetles , flea - beetles , pea and bean weevils , blister beetles , bill - bugs and other snout - beetles . Lepidoptera ( Butterflies and moths ) .- This order consists of insects having four membranous wings covered ...
... beetles , leaf - beetles , flea - beetles , pea and bean weevils , blister beetles , bill - bugs and other snout - beetles . Lepidoptera ( Butterflies and moths ) .- This order consists of insects having four membranous wings covered ...
Página 29
... leaves which should be poisoned . Substances which are of little or no practical use as repellents , for vegetable ... leaf - beetles and other foliage - feeders . Its value as a fungicide is too well known for further comment . The ...
... leaves which should be poisoned . Substances which are of little or no practical use as repellents , for vegetable ... leaf - beetles and other foliage - feeders . Its value as a fungicide is too well known for further comment . The ...
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Términos y frases comunes
abundant adult affected aphides appearance applied arsenicals asparagus attack Author's illustration bean weevil beans beet bill-bug bisulphid blister beetles Bordeaux mixture borer cabbage worm carrot caterpillars celery color Colorado potato beetle corn crops cucumber beetle cucurbits cultivation cutworms damage deposited destroy destructive eggs enlarged fall plowing farm farmers feed female fields flea-beetles fore-wings forms frequently fruit garden grasses grasshoppers ground grower grown habits hatch hibernation inch infested insect enemies insecticides insects INSECTS INJURIOUS kerosene kerosene emulsion killed larva larvæ leaf-beetles leafhoppers leaves less looper maggot mature melon aphis methods natural nearly numbers onion Paris green pea weevil pests plant-bug poisons potato beetle practical pupa remedies Riley root-worm roots season seed shown in figure soap soil species spray squash stage stalk stalk-borer striped surface sweet potato thrips tion tobacco tomato tortoise beetles tubers U. S. Dept vegetables webworm weeds white grubs wing expanse wireworms young plants
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