74 



(b) Stems , cut off or eaten. — Cutworms and Army Worms (Leu- 

 caniia unipuncta) or Grasshoppers. 



(c) Stems and leaves wither and die; plants covered with big green 

 long-legged plant lice.— Pea or Clover Plant-Louse (Macrosiphum pisi). 



The Leaves: — 



(a) Leaves full of round holes, and edges gnawed. — Clover-Leaf Weevil 



(Phytonomus punctatus). 



(b) Leaves eaten and with a ragged appearance. — Grasshoppers. 



(c) Leaves folded along midrib, yellowish or brownish, with white or 

 orange maggots or silken cocoons within the folds. — Clover-Leaf IVIidge 



(Cecidomyia trifoHi). 



The Heads and Seed: — 



(a) Florets at blossoming time green and undeveloped; the ovaries 

 empty or with an orange pink or whitish maggot. — Clover-Seed Midge 



(Cecidomyia leguminicola). 



(b) Seeds eaten, and become brown, brittle, and hollow; affected seeds 

 are dull brown and often misshapen and of small size; maggot minute, white 

 and footless. — Clover-Seed Chaicid(Bruchophagus funebris). 



(c) Unopened blossoms destroyed, a cavity eaten in the head. — Clover- 

 Seed Caterpinar(Enarmonia interstinctana) . 



Stacked or Stored Clover Hay:— ^ 



(a) Hay containing white silky webs and particles of excrement, — Clover 

 Hay- Worm (Hypsopygia costalis). 



INSECTS INJURING INDIAN CORN. 



Planted Seed— 



(a) The plant fails to come up after planting; grain destroyed by a footless 

 maggot which eats out the interior — Seed-Corn Maggot (Phorbia fuciceps)- 



(b) The plant fails to come up, or the young plant suddenly wilts after it is 

 above grouhe ; the presence of hard smooth yellowish wire-like worms — Wirewoms 

 (several species). 



