Insects Injurious to VegetablesO. Judd Company, 1907 - 262 páginas |
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Página vi
... sweet potato , and finally miscellaneous or unclassified crops . The insect enemies of vegetables have not hitherto been con- sidered as a special topic in comprehensive form . Separate accounts , however , on the economic entomology of ...
... sweet potato , and finally miscellaneous or unclassified crops . The insect enemies of vegetables have not hitherto been con- sidered as a special topic in comprehensive form . Separate accounts , however , on the economic entomology of ...
Página ix
... POTATO AND SIMILAR Vegetables 213-228 CHAPTER XIV INSECTS INJURIOUS TO THE TOMATO 229-234 CHAPTER XV INSECTS INFESTING THE SWEET POTATO 235-243 CHAPTER XVI • INSECTS INJURIOUS TO MISCELLANEOUS VEGETABLE CROPS 244-251 The onion and other ...
... POTATO AND SIMILAR Vegetables 213-228 CHAPTER XIV INSECTS INJURIOUS TO THE TOMATO 229-234 CHAPTER XV INSECTS INFESTING THE SWEET POTATO 235-243 CHAPTER XVI • INSECTS INJURIOUS TO MISCELLANEOUS VEGETABLE CROPS 244-251 The onion and other ...
Página 55
... sweet potato in poison before setting out . Arsenate of lead is best for this purpose prepared as for spray- ing I pound to 25-50 gallons of water . Where it is possible , however , to spray grass or weeds which have grown up in fields ...
... sweet potato in poison before setting out . Arsenate of lead is best for this purpose prepared as for spray- ing I pound to 25-50 gallons of water . Where it is possible , however , to spray grass or weeds which have grown up in fields ...
Página 119
... potato , and tomato , and attacks besides sweet potato and some flowering plants . Blister beetle remedies are discussed on page 68 . CHAPTER VIII INSECTS INJURIOUS TO BEETS AND SPINACH THE recent INSECTS INJURIOUS TO BEANS AND PEAS 119.
... potato , and tomato , and attacks besides sweet potato and some flowering plants . Blister beetle remedies are discussed on page 68 . CHAPTER VIII INSECTS INJURIOUS TO BEETS AND SPINACH THE recent INSECTS INJURIOUS TO BEANS AND PEAS 119.
Página 159
... potato beetles are valuable , but all poisons must be renewed frequently and are not generally to be relied upon ... sweet corn . In exceptional sea- sons it does nearly as much injury locally to cucurbits as the striped cucumber beetle ...
... potato beetles are valuable , but all poisons must be renewed frequently and are not generally to be relied upon ... sweet corn . In exceptional sea- sons it does nearly as much injury locally to cucurbits as the striped cucumber beetle ...
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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 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 sometimes species spray squash stage stalk stalk-borer striped surface sweet potato thrips tion tobacco tomato tortoise beetle tubers U. S. Dept vegetables webworm weeds white grubs wing expanse wireworms young plants
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