CHAS. C. NAVLET CO. 
1885-1935 
PEST CONTROL CHART 
Numbers used in this chart correspond to those assigned to the INSECTICIDES AND FUNGICIDES listed on 
pages 54 and 55. 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. 
Keep old trash, weeds, boards, leaves, prunings, etc., cleaned up, as they offer excellent places for Insects 
and Disease to develop or hibernate. 
Complete coverage is essential with Contact Insecticides, as the insect to be killed must be hit. 
Better not to use any liquid spray on hot days or when there are drying winds. 
Combinations of sprays should never be attempted without first seeking the advice of an Authority. Some 
sprays, harmless in themselves, are dangerous in combinations. 
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 
honey dew in which black Smut Fungus grows. 
25-32-26-20-(9 & 45)-18-17. (F). 
Aphis Eggs—On Prune, Cherry, Almond and Peach 
Trees. 23, (D). 
Aphis, Woolly—On Apple and Pear Roots 29. 
Argentine Ants—Are carriers of Mealy Bug, Aphis and 
Scale. Kill in Soil with 2-29-25. Kill through work¬ 
ers with 1-3. 
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. 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. Tender foliage 5B. Hardy foliage 5S. 
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—Of seedling plants. Treat soil and 
plants with 35-7-33. 
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)-18-17. 
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. 
Leaf Beetle—On Strawberries. Dust with 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 13. Spray 17-18-5B. 
Mealybugs—Waxy scale likely to be found almost any¬ 
where. They suck the sap from twigs and roots of 
plants and secrete a sticky honeydew that covers 
foliage and harbors Black Smut Fungus. Control 
Ants, vice versa. On Plants, spray, saturate soil 
around roots and dip roots of all suspicious trans¬ 
plants 20-28. Dig 43 into soil around infested plants. 
Mix Tobacco Dust in soil at planting time. 
Mealy Plum Louse—Plums and Prunes. 9-45. 
Please Include Sales Tax within the State of California 
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. On Peaches, Beans and Peas, Dust 40-42. On 
Cucumbers, Spray 8. On Delphinium, Dust 21; 
Spray 7-33. On Roses Spray 8-15-22 (D); Dust 21- 
40-42; Spray 7-33 (F). 
Moles—Open runway at intervals and put quantity of 
14 or 29 in each hole. Close hole. 
Morning Glory—Use 44, after sundown. 
Moss—On Trees. Use 3 lbs. Caustic Soda in 100 gals, 
water, and spray thoroughly. (D). 
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. 
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. 
Pear Thrips—On Prunes, Pears, Cherries. Dust 25. 
Pine Tree Borer—Use 16. 
Red Berry—Himalaya Blackberries (Blackberry Mite.) 
Spray 15-22 (D), 34-33-41 (F). 
Red Spider—Almonds, Apricots, Cherries, Peaches, 
prunes, Plums. Spray 15-22 (D), 34 (F). Dust 40. 
Rot of Bulbs—Corms, Roots, Tubers. Use 35. 
Rust—Asparagus, Beans. Dust 40. Roses, Hollyhocks, 
etc. Spray 33-41. 
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 36-11-37-38. 
Sow Bugs—Scatter 39 in dry places. 36-11-37-38. 
Squirrels—Use 14-31. 
Termites—Saturate soil with solution of 44. Treat holes 
leading to nests with 14-29. 
Thrips—On Gladiolus. Treat Bulbs with 24. Spray foli¬ 
age with formula including 30. Pears, Prunes, Cher¬ 
ries, see “Pear Thrips.” Found in the flowers of most 
plants. When a flower is shaken over the hand, the 
Thrips fall out and look like animated straw slivers. 
They are responsible for misshapen and marred 
flower petals and browned tips. Dust 25-32. 
Weeds—In areas- where plant life is undesirable. Use 44. 
Dandelions and Broad-leaved Weeds in Lawns. LTse 
44 concentrated applied to each plant. Dilute Sul¬ 
phate of Iron and apply. 
Weevil—On vegetables. Dust with 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). 
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