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Control 
CALENDAR 
for Vegetable 
PESTS 
THIs CONTROL CALENDAR is a com- 
bination of the control calendars from 
various experiment stations, agricul- 
tural colleges and extension services 
in Eastern States territory. 
All Eastern States spray materials 
are formulated to comply with the 
WPB orders. For the 1944 season 
the use of rotenone in five-pound bags 
is not restricted to specific crops and 
no certificate is required. The larger 
sized packages are still subjected to 
the same restrictions as applied in 
1943. 
Remember that there are no sub- 
stitutes for THOROUGH COVERAGE, 
TIMELINESS, GOOD EQUIPMENT, FIELD 
SANITATION — these four points must 
be practiced before any spray or dust 
can be expected to give effective re- 
sults. This brief calendar can serve 
only as a guide; for more specific de- 
tails relative to spraying or dusting 
problems consult your state recom- 
mendations, your extension agent or 
write the West Springfield office. 
The home gardener can obtain sat- 
isfactory control with an Eastern 
States Hand Duster plus a simple dust 
program involving all or part of these 
materials in five-pound bags. Both 
insects and diseases can be controlled 
with Insect-Fungus Dust (rotenone- 
copper) or with N-C-4 Dwr (neutral 
copper and calcium arsenate). 
To control insects only, use Insect 
Dust (rotenone). To control disease 
only, use N-C Dust (neutral copper) 
which can replace Bordeaux Mixture. 
APHIDS — Plants attacked: bean, cabbage, cau- 
liflower, turnip, radish, broccoli, Brussels sprout, 
melon, cucumber, squash, eggplant, lettuce, pea, 
pepper, potato, spinach. Control: Spray with nicotine 
sulfate, ¥% pint, and two pounds soap in 50 gallons 
water, or dust with Insect Dust, 4% nicotine lime 
dust, Insect-Fungus Dust, 
RUMFORD PRESS 
CONCORD,N.H, 
BEAN BEETLES — Plants attacked: bean. Con- 
trol: Dust with Insect Dust, Insect-Fungus Dust. 
CUTWORM, ARMY WORM — Plants at- 
tacked: asparagus, cabbage, cauliflower, turnip, rad- 
ish, broccoli, Brussels sprout, corn, pea, pepper, 
tomato. Control: Dry mix 5 pounds of wheat bran, 
¥% pound Paris green. Dissolve one pint molasses in 
about 3 quarts of water, add dry mixture and stir 
vigorously. The bait should be damp but not wet 
and should be broadcast at dusk, 20 pounds to the 
acre, before plants are set or just as seed is sprouting. 

WEBWORM — Plants attacked: beet, parsnip. 
Control: Spray with calcium arsenate, 114 pounds, 
and 1% pounds spray lime in 50 gallons water or 
dust with N-C-A dust. 
COLORADO, THREE-LINED POTATO BEE- 
TLES, FLEA BEETLE, BLISTER BEETLE — 
Plants attacked: potato, Control: Spray with cal- 
cium arsenate, 1% pounds in 50 gallons water, or 
dust with N-C-A dust. The calcium arsenate may 
be combined with Bordeaux mixture. Apply when 
insects appear and repeat as needed. 


ASPARAGUS BEETLES — Plants attacked: 
asparagus. Control: On cutting beds dust with 
Insect Dust. When cutting season is over spray 
with lead arsenate or calcium arsenate, one pound in 
50 gallons of water, and add % pound goulac, or 
dust with a mixture of 20 parts lead arsenate or 
calctum arsenate and 80 parts spray lime, 
FLEA BEETLE, BLISTER BEETLE — Plants 
attacked: beet, eggplant, pepper, potato, tomato. 
Control: Dust with Insect Dust, Insect-Fungus Dust. 
A spray of one pound calcium arsenate in Bordeaux 
mixture (2-2—50) is also effective. 

LEAFHOPPERS — Plants attacked: potato. 
Control: Spray with Bordeaux mixture (S—5—50). If 
infestation is heavy, add % pint nicotine sulfate, or 
if infestation is light, dust with 20-80 or N-C dust. 
WHITE GRUB — Plants attacked: potato. 
Control: Plow in late fall. Do not plant potatoes 
following sod if grubs are numerous. 
HORNWORM, CORN EARWORM — Planis 
attacked: tomato, Control: Spray with calcium 
arsenate, one pound in 50 gallons water. Apply when 
insect appears. Hand pick on small areas. 



WIREWORM — Plants attacked: beet, carrot, 
onion, potato. Control: Late fall plowing and fre- 
quent cultivation reduce population. On small areas 
it may be economical to distribute trap baits of 
potato, and when the worms have been attracted 
kill them by hand or by soil fumigation with calcium 
cyanide, 

GREEN CABBAGE WORM, CABBAGE 
LOOPER, DIAMOND BACK MOTH, ZEBRA 
MOTH — Plants attacked: cabbage, cauliflower, 
turnip, radish, broccoli, Brussels sprout. Control: 
Dust with Insect Dust. 

CABBAGE MAGGOT — Plants attacked: cab- 
bage, cauliflower, turnip, radish, broccoli, Brussels 
sprout. Control: Soak soil about roots with corrosive 
sublimale, one ounce in 10 gallons of water, and 
apply % cupful to each plant or dust roots and 
stems with calomel gypsum dust at the time of 
transplanting and make three heavy applications 
around stem at weekly intervals. 

TARNISHED PLANT BUG — Plants attacked: 
cabbage, cauliflower, turnip, radish, broccoli, Brus- 
sels sprout, celery, cucumber, melon, squash, onion, 
potato. Control: Spray with nicoline sulfate, one pint, 
and 3 to 4 pounds of soap in 100 gallons of water, or 
dust with Insect Dust. Make applications 3 or 4 
times at weekly intervals. 

SWALLOWTAIL CATERPILLAR — Plants at- 
tacked: celery, parsnip. Control: Spray with calcium 
arsenate, one pound in 50 gallons of water, or dust 
with N-C-A dust for both this pest and blight. 

EUROPEAN CORN BORER — Plants attacked: 
corn. Control: Dust with Insect Dust. Apply when 
borers are hatching and 3 or 4 times at weekly inter- 
vals thereafter. Burn or plow under stubble and 
fodder in fall. Break out and destroy tassels while 
borers are still in them. 

CORN EARWORM — Planis aitacked: corn. 
Control: Inject white mineral oil into tip of husk when 
silk starts to turn brown or clip off tip of husk and 
silk when silks start to turn brown. Either treat- 
ment must be done after ear has been properly 
pollinated. 
STRIPED, SPOTTED CUCUMBER BEETLES 
— Plants attacked: cucumber, melon, squash, pump- 
kin. Control: 1 |b. calcium arsenate in Bordeaux 
mixture (2—2—50). 


SQUASH BUG — Plants at acked: cucumber, 
melon, squash, pumpkin. Control: Spray with 
nicotine sulfate, one pint in 50 gallons of water. 
The spray is effective only on very young bugs. 
Hand pick and destroy adult bugs or place small 
pieces of board on the ground near the plants to 
serve as traps, lift boards early in the morning and 
destroy bugs. 

SQUASH VINE BORER — Plants attacked: 
melon, squash, pumpkin. Control: Spray with mico- 
tine sulfate, one quart in 50 gallons of water. Apply 
3 or 4 times at weekly intervals when borers are 
hatching. 

ONION MAGGOT — Plants attacked: onion. 
Control: Spray with Bordeaux mixture (4-4-50) to 
which has been added 1% gallons dormant spray 
oil. Apply 3 or 4 times at weekly intervals when 
flies appear. 
COMMON STALK BORER — Plants attacked: 
tomato. Control: Remove and destroy all weeds. 
Split stem with knife and destroy borer. 
GARDEN SLUGS — Plants attacked: lettuce, 
potato. Control: Use poison bait as for CUTWORM. 


GARDEN SPRINGTAIL — Plants attacked: 
beet, spinach. Control: Treat same as APHIDS. 

SPINACH LEAF MINER — Plants attacked: 
beet, spinach. Control: Destroy infested plants or 
remove infested leaves. Destroy all weeds in the 
immediate vicinity. 
EARLY, LATE BLIGHT (LEAF SPOT), 
POWDERY MILDEW, SCAB, ANTHRAC- 
NOSE, DOWNY MILDEW, FRUIT ROT — 
Plants attacked: tomato, cucumber, melon, squash, 
pumpkin. Conirol: Spray with Bordeaux mixture 
(2—2-S0), neutral copper fungicide, 5 pounds in 100 
gallons water, or dust with N-C dust or a combina- 
tion insecticide and fungicide. Applications should 
be made at 10 to 14-day intervals beginning before 
the disease usually makes its appearance. 


POWDERY MILDEW, RUST — Plants at- 
tacked: pea, asparazus. Control: Spray with wettable 
sulfur, 4 to 6 pounds in 100 gallons water, or dust 
with dusting sulfur. On peas wait until mildew 
appears and repeat as needed. On asparagus make 
applications three weeks after cutting season at 
18-day intervals. 

EARLY, LATE BLIGHT (LEAF SPOT), TIP- 
BURN, CROWN ROT — Plants attacked: celery, 
potatoes, rhubarb, Control: Spray with Bordeaux 
mixture (S—5—50), neutral copper fungicide, 6 pounds 
in 100 gallons water, or dust with N-C dust or a 
combination insecticide and fungicide, Applications 
should be made at 10 to 14-day intervals after plants 
are well started. 

WILT — Plants attacked: cucumber, melon, 
pumpkin, squash. Control: Control cucumber bee- 
tles and destroy immediately all diseased plants. 

SMUT — Plants attacked: corn. Control: Remove 
and destroy boils before they burst. Practice field 
sanitation. 

ASTER YELLOWS — Plants attacked: carrot, 
lettuce. Control: Remove and destroy all weeds in 
the immediate vicinity. Control insects, especially 
LEAFHOPPERS,. 
GRAY MOLD FRUIT ROT — Plants attacked: 
eggplant. Control: Remove withered blossoms when 
harvesting fruit. 


NECK ROT Plants attacked: onion. Control: 
Control insects. Cut tops close, allowing them to 
mature completely. Cure well before storing in 
slatted crates in cool, well-ventilated room, 


MOSAIC — Plants attacked: pea, potato, tomato. 
Control: Control APHIDS, LEAFHOPPERS, and 
weeds. 

BLOSSOM END ROT — Plants attacked: pep- 
per, tomato. Control: Avoid dry locations. Maintain 
as uniform a moisture content as possible. 

LEAF ROLL, SPINDLE TUBER — Plants at- 
tacked: potato. Control: Use certified seed. Control 
APHIDS, LEAFHOPPERS. 

ONION THRIP — Plants attacked: onion. Con- 
trol: Spray with 3% pint nicotine sulfaie and 2 pounds 
soap in 50 gallons water. 
DOWNY MILDEW — Plants attacked: spinach. 
Control: Avoid excessive watering and when neces- 
sary, water in the morning. 

CARROT RUST FLY — Plants attacked: carrot, 
parsnip. Control: Dust with Insect Dust, Insect- 
Fungus Dust. Apply 3 or 4 times at weekly intervals 
when flies appear. 
FERN LEAF, STREAK — Plants attacked: 
tomato. Control: Destroy all weeds in the immediate 
vicinity. Control insects and isolate from tobacco 
and potatoes, 
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