Fifty-Two Years 
Chas. C. Navlet Co. 
PEST CONTROL CHART 
Numbers used in this chart correspond to those assigned to the INSECTICIDES AND FUNGICIDES listed on 
preceding pages. Where more than one number is shown, the Gardener has a choice of material to effect control. The 
order in which they are given indicates our preference, except 15-22 where either is equally effective. 
We have indicated the period during which it is considered best to apply the Spray and Dust Materials 
listed as follows: 
“D”—Dormant application during rest period in winter when deciduous trees have dropped their foliage. 
“SD”—Semi-dormant application, when leaf and blossom buds are swelling and show pink in Spring. 
“F”—Applications during period of leaf development and during full growth. 
Where indicator is not shown, apply soon as insect or disease noted, or during full growth as the case may be. 
Angle Worms—In Lawns and Moss. Use 46. 
Aphis (Aphids or Plant Lice)—Curl and stunt tender 
leaves and blossoms and make leaves sticky with 
honeydew in which black Smut Fungus grows. 
25-32-26-20-(9 & 45)-10a. 13a-34-21a (F). 
Aphis Eggs—On Prune, Cherry, Almond and Peach 
Trees. 23, (D). 
Aphis, Woolly—On Apple and Pear Roots 29-21a & 28. 
Argentine Ants—Are carriers of Mealy Bug, Aphis and 
Scale. Kill in Soil with 2-29-25. Kill through work¬ 
ers with 1-3. Band trees and shrubs with 42d. 
Army Worms—Larvae of night-flying insects. 36-11. 
Bacterial Gummosis and other wounds of the bark, scrape 
off dead wood and paint wound with a paint made 
by mixing 8 with water. 
Beetles—The 12-spotted green Lady Bug is typical. Lar¬ 
vae feed on roots and tubers. Adults feed on bright 
colored flowers. 12a-13-6. 
Blight—Celery 21; Ornamentals, Garden and Green¬ 
house Plants 21; Peaches (Shot Hole Fungus) or 
Almonds 15-22-8 (Nov. 15 to Dec. 15) ; Potatoes 
and Tomatoes 6-8. 
Brown Patch—Large and Small on Lawns. Use 27-35. 
Brown Rot—Apricots and Cherries 8 (SD); Prunes and 
Plums 15-22-8 (SD). 
Cane Blight—Blackberries, Loganberries, Raspberries 
22-8 (D). 
Caterpillars—Attack foliage of a wide variety of plants 
and trees. Spray with 5b-13a or s. Dust with 12a-34a. 
Cherry Slug—Cherries and Pears. Dark green worms 
secrete a slime and look like Slugs. Eat off the sur¬ 
face of leaves, leaving network of veins. 25-13-5B 
(F). 
Codling Moth—(Worm of Apples, Pears, Quinces). Im¬ 
portant to follow sequence of sprays. 5 (SD) (F). 
Curl Leaf—Peaches and Nectarines. Curling and dis¬ 
torting of leaves. Trees often defoliated. Nothing 
can be done to cure it, but it can easily be prevented 
8-15-22 (SD) 7-33 (F). 
Cut Worms—Larvae of night-flying insects. 36-11. 
Damping-Off Disease—Treat seed with 13a-35. Treat soil 
and seedling plants with 13a-35-7-35. 
Diabroticae (Green Lady Bugs)—Eat holes in petals of 
bright-colored flowers. Dust flowers with 13-12a. 
Earwigs—Attack plants, flowers, vegetables in the gar¬ 
den, and anything in the house. 4-19-36-37-38. 
Fern Lice—Weak solution of 26-(9 & 45) -10a. 
Flea Beetle—Tiny blue or green with metallic lustre. Eat 
away leaves. 13-25-6. Tomatoes 6. 
Grasshoppers—Moisten and scatter 36-11-37-38. 
Ground Squirrel—Gas with 14. Poison with 31. 
Lawn Moths—Distribute 5 lbs. 5 to each 1000 sq. ft. and 
wash in thoroughly. (See Page 8 Planter’s Guide.) 
Leaf Beetle—On Strawberries. Dust with 12a-13. 
Leaf Hopper—On Grapes. Dust with 14-25. 
Leaf Miner—Some call them tracing bugs, because they 
leave winding white areas on leaves as they feed on 
the leaf tissue of Cinerarias, Holly, Chrysanthe¬ 
mums, Nasturtiums. Use 20. 
Leaf Rollers and Leaf Tiers—Caterpillars, common to 
Apples, Cherries, Roses, etc., which roll and tie and 
eat leaves. Dust 12a-13. Spray 10a-5b. 
Mealybugs—Waxy, oval, gray, soft bugs found on most 
plants and frequently in soil. Cottony egg masses. 
They suck sap from twigs, foliage and roots. Ants 
distribute them. Use 21a combined with 28 or use 
21a-28-20. Soil Mealybug—Saturate soil with water, 
then soak next day with 21a. Some dig 43 into soil. 
Unplanted beds best fumigated with 14. 
Mealy Plum Louse—Plums and Prunes. 9-45. 
Moles—Open runway at intervals and put quantity of 
14-29-26a-24 in each hole. Close hole. 
Mildews—Attack nearly all plants, covering leaves, suc¬ 
culent new growth and buds with a gray, powdery 
growth. On Apples, Pears, Currants, Grapes, Spray 
41-15-22; Dust 40-42. On Garden and Greenhouse 
Plants and Ornamentals Dust 21-40-42; Spray 7-33- 
41-22b. On Peaches, Beans and Peas, Dust 40-42. 
On Cucumbers, Spray 8. On Delphinium, Dust 21; 
Spray 7-33-22b. On Roses Spray 8-15-22 (D); Dust 
21-40-42; Spray 7-33-22b (F). 
Morning Glory—Use 44, after sundown. 
Oak Moth Caterpillar—Make spray of 3 lbs. 5s in 100 
gals, water, add 1 gal. black strap molasses as a 
bait. (Where sensitive or tender plants are under 
the Oaks, use 4 lbs. 5b instead.) Apply when Cater¬ 
pillars are small, March and April for winter brood 
on Live Oaks. For summer brood spray last half 
July or first half August. Dust with 12a-13. 
Peach Borer—Roots of Peaches, Apricots, Prunes and 
Cherries. Apply 29 as soon after Sept. 1 as possible. 
Clear off and smooth ground around tree. Place 1 oz. 
to each tree in a ring about 2 in. from the tree. Do 
not let it touch the tree. Cover with dry dirt banked 
up against trunk and tamp. Trees must be at least 
6 years old. 
Peach Worm (Peach Twig Borer)—Peaches, Plums, Nec¬ 
tarines, Apricots. Spray 5b (SD). Combine with 
Curl Leaf Spray. 
Pine Tree Borer—Use 16. 
Red Berry—Himalaya Blackberries (Blackberry Mite.) 
Spray 15-22 (D), 33-41 or 28 (F). 
Red Spider—Almonds, Apricots, Cherries, Peaches, 
Prunes, Plums. Spray 15-22 (D). Dust 40 (F). 
Rot of Bulbs—Corms, Roots, Tubers. Use 35. 
Rust—Asparagus, Beans. Dust 40. Roses, Hollyhocks, 
etc. Spray 33-41-22b. 
Scale—On Deciduous trees. 23, (D); 28 (F). Evergreen 
trees and shrubs 28 (F). 
Slugs—Cherries, Pears. See “Cherry Slug.” 
Slugs, Snails—Moisten and scatter 36-ll-37-38-42a. 
Sow Bugs—Scatter 39 in dry places. 4-36-ll-37-38-42a. 
Squirrels—Use 14-31. 
Termites—Saturate soil with solution of 44. Treat holes 
leading to nests with 14-29. 
Thrips—Gladiolus. Store corms in paper sacks or boxes 
with 1 oz. (4 tbsp.) 24 to each 100 bulbs. At plant¬ 
ing time, peel corms and immerse for 15 to 20 min¬ 
utes in solution ()4 cup 22 in 1 gallon water) at 
temperature of 112 degrees F. During growing 
period, spray weekly with (*4 lb. 22a, 4 lbs. Brown 
Sugar, 6% gals, of water) ; or (2j£ tsp. 21a in 1 gal. 
water). 13a-34a. 
Thrips—On Prunes, Pears, Cherries, Garden Flowers. 
They cause browning of tips of flower petals, and 
distortion of foliage. Dust with 25-32-34a. Spray 
with 26-9-20-34-21a-10a. 
Weeds—In areas where plant life is undesirable. Use 44. 
Dandelions and Broad-leaved Weeds in Lawns. Use 
44 concentrated applied to each plant. Dilute Sul¬ 
phate of Iron and apply. (See Page 8 Planter’s 
Guide.) 
Weevil—On vegetables. Dust with 12a-19. 
White Fly—Larvae. Spray with 20-28. Adults, Dust with 
25-32. Under Glass, fumigate with 14G. 
Wireworms—Long, slender, smooth larvae which turn 
into beetles in three years. Unplanted beds, treat 
with 14. Planted, with 29, mixed in top soil. Must 
not touch stems. 
Woolly Aphis—On Roots. See “Aphis (Root or Woolly).” 
On branches and trunk of Apples and Pears. Spray 
with 20-26-(28 & 9). 
61 
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