Insect pests of farm, garden and orchard . nside a small oval cavity again shedsits skin, and lnbernales over winter asa soit of semipupa. In the spring thelanica). (After Chitten- larva appears again nuich like theden, U. S. Dept. Ap-.) ^^^^.^^^^^ ^^^^^ ,^^1, ^j^,^,^ not eat much, and soon goes into the i)upal stage, from which emerges the adultl)eetle. Altogether the life history is one of tiie most peculiar andcompHcated among insects. Thus the blister-beetles are one of themost important factois in holding the grasshoppers in check. Remedies.—However, when they swarm into the beet-fields,p
Insect pests of farm, garden and orchard . nside a small oval cavity again shedsits skin, and lnbernales over winter asa soit of semipupa. In the spring thelanica). (After Chitten- larva appears again nuich like theden, U. S. Dept. Ap-.) ^^^^.^^^^^ ^^^^^ ,^^1, ^j^,^,^ not eat much, and soon goes into the i)upal stage, from which emerges the adultl)eetle. Altogether the life history is one of tiie most peculiar andcompHcated among insects. Thus the blister-beetles are one of themost important factois in holding the grasshoppers in check. Remedies.—However, when they swarm into the beet-fields,potato- or gaiTlen-patches, one cannot afford to allow them toconsume one crop for the good they nuiy do in saving anotherfrom still anotlu^- insect scourge. A biid in the hand is worthtwo in the bush, is equally true of insects. 80 l>e leady for themon their first appearance; give the jjlants a thorough sprayingwith of 1 pound of Paris green, and 1 jjound of lime to 125 gallonsof water. It may be well to spray with liordeaux mixture,. Fig. Ilie black blisterbeetle (Epicauta pennsyl- INSECTS INJURIOUS TO BEETS AND SPINACH ol5 which will prevent various fungous diseases, and with whichParis green can be used much stronger without danger of burn-ing the foliage; or it may l)e ajjplied dry 1)y mixing with fromten to twenty parts of flour or plaster, dusting it on in earlymorning, while the dew is still on the plants. Arsenate oflead sprayed at the rate of 3 jjounds to 50 gallons, or used asa dust, will be eciually effective, will adhere to the foHage better,and will be less likely to burn the foliage. The Beet or Spinach Leaf-miner. * Frequently beet and spinach leaves will be found with tor-tuous mines or large blotches which have been mined out bysmall white maggots beneath the surface epidermis. This injuryis most commonly due to the maggot of a small fly shown inFig. 248. The ground color is gray with the front of the headsilver white. The body, including the legs,
Size: 1343px × 1861px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublisheretcet, bookyear1912
