Pest Management for Vegetable Bedding Plants June 2007

Tables

 Table 1
June 2007
Selected insecticides labeled for insects and mites on vegetable bedding plants.
 Table 2
June 2007
Selected fungicides and bactericides labeled for vegetable bedding plants.
 Table 3
June 2007
Scouting guidelines and biological control options.
  go to article: Pest Management for Vegetable Bedding Plants

Table 1.Selected insecticides labeled for insects and mites on vegetable bedding plants

Insecticide

Target Pests

Labeled Crops

Comments

Azadirachtin

(Aza-Direct)

4 hr. REI

 

 

Many including: aphids, beetles, weevils, thrips, true bugs, caterpillars, leafhoppers, leafminers, whiteflies, mites, and fungus gnat larvae

Many vegetables including bulb, cole, curcurbit, leafy and fruiting types (eggplant, tomato, peppers)

Insect growth regulator for immature stages of insects. Repeat applications needed. Repels some insects and can be used as an antifeedant.

(Azatrol)

4 hr. REI

 

Aphids, caterpillars & loopers, fungus gnat larvae, leafhoppers, leafminers, thrips, spider mites and whiteflies  

(Azatin XL)

4 hr. REI

 

Aphids, caterpillars &loopers, cutworms, leafminers, leafhoppers, thrips, whiteflies, and fungus gnat larvae

(Ornazin 3% EC)

12 hr. REI

 

Aphids, beetles, caterpillars, fungus gnat larvae, leafhoppers, leafminers,   thrips,  and whiteflies

(Neemix 4.5) 

12 hr. REI

Aphids, whiteflies, thrips, leafminers, loopers, caterpillars, armyworms, cutworms

Azadirachtin & Neem Extract

(Agroneem Plus)

4 hr. REI

Aphids, caterpillars & loopers, leafminers, mites, thrips, and  whiteflies

Many vegetables including fruiting vegetables, baby vegetables, etc.

Each treatment has two applications.

Bacillus thuringiensis subsp. aizawai

 (Agree WG, XenTari )

4 hr. REI

Certain caterpillars (see label)

Greenhouse vegetables such as tomatoes, cole crops, peppers (see label)

 

Stomach poison that must be eaten by target insect to be effective. Most effective against small, newly hatched larvae. Insects stop feeding and dies 1 to 5 days later.

Bacillus thuringiensis

subsp. kurstaki

(Biobit HP, Deliver, DiPel Pro DF, Dipel DF)

4 hr. REI

 

Certain caterpillars (see label)

Many vegetables including leafy and cole crops, eggplant, peppers, tomatoes and squash

Stomach poison that must be eaten by target insect to be effective. Most effective against small, newly hatched larvae. Insects stop feeding and dies 1 to 5 days later.

Bacillus thuringiensis

subsp. israelensis

(Gnatrol)

4 hr. REI

Fungus gnat larvae

Vegetable plants such as leafy and cole crops, cucumbers, peppers, tomatoes and eggplants

Stomach poison most effective against first instar larvae. Apply as soil drench. May be applied through irrigation system. Do not combine with fungicides or fertilizers containing copper or chlorine.

Beauveria bassiana

Strain GHA

(Botanigard ES)

4 hr. REI


(Botanigard 22WP)

 4 hr. REI

 

(Mycotrol O)

4 hr. REI

Aphids, thrips, whitefly, psyllids,  mealybugs (See labels for more information)

 

 

 

 

Many vegetables including cole crops, greens, eggplant, peppers, and squash. Do not use ES formulations on tomatoes.

Contains a fungus that must contact the target pest. Do not tank mix with fungicides. Thorough spray coverage needed for this contact material to be effective. Treat when insect populations are low. Repeated applications may be needed.

Bifenazate

(Floramite SC)

12 hr. REI

Spider mites

Greenhouse tomatoes, varieties greater than 1 inch in diameter, when mature. Do not make more than 2 applications per crop per year. 

Not effective against rust mites or broad mites. Compatible with beneficial predatory mites. Is rapidly degraded in alkaline water of high temperature. Use solutions promptly or add a commercial buffering agent.

Buprofezin

(Talus Insect Growth Regulator)

12 hr. REI

Whiteflies, mealybugs, and leafhoppers

Greenhouse tomatoes

Active against nymph stages. Chitin synthesis inhibitor, suppresses oviposition of adults and reduces viability of eggs. Treated pests may remain alive for 3 to 7 days, but feeding damage is low. Apply no more than two applications per growing cycle. Allow at least 28 days between applications.

Chlorfenapyr

(Pylon)

12 hr. REI

Caterpillars (many), spider mites, broad mites, and western flower thrips

Tomato, tomatillo, ground cherry, peppers, eggplant, pepinos

Do not use on tomato varieties with a diameter of less than one inch when mature. 

Do not apply more than 3 applications during a crop cycle. Do not apply more than two consecutive applications before rotating to a chemical in a different class.

Cottonseed oil, Clove oil, Garlic Oil

(Pes Out) (formerly GC-Mite)

(Exempt)

 

Spider mites, thrips, and aphids

Food crops

All applications should be proceeded by a phytotoxicity check to ensure that the material is safe for that particular plant variety. See label for information on plant safety and use instructions. Thorough spray coverage is needed.

Dinotefuran

(Safari 20 SG)

12 hr. REI

Aphids, leafminers, mealybugs, thrips (suppression), whiteflies (including silverleaf whiteflies – B and Q biotypes

Vegetable transplants

Do not make more than one application per crop.

Endosulfan

(Thionex 3 EC)

 (Thionex 50W)

24 hr. REI

 

Aphids, Blister beetles, tomato hornworm, loopers, tomato russet mite, and whiteflies

Greenhouse tomatoes

Thorough coverage is needed for high whitefly populations.

Horticultural oil

Paraffinic Oil

(Ultra-Fine Oil)

(Pure Spray Green)

4 hr. REI

 

Petroleum Oil

(Saf-T-Side Spray Oil Emulsion Fungicide, Insecticide and Miticide

4 hr. REI

Many including aphids, leafminers, mites, thrips, whiteflies, leafhoppers, mealybugs and others

 

 

 

Aphids, leafhoppers, leafminers, thrips, mites and whiteflies

Many vegetables including cole crops, lettuce, eggplant, pepper, squash and tomato

 

 

 

Vegetable crops (see label)

Works by contact.  Do not exceed four applications per growing season. A 2-week interval between treatments is recommended. See label for information on plant safety. All applications should be proceeded by a phytotoxicity check to ensure that the material is safe for that particular plant variety.

Imidacloprid(Admire Pro Systemic Protectant)

12 hr. REI


(Marathon II)

 

 


(Marathon 60WP)

12 hr. REI

Aphids, whiteflies

 


Aphids, leafhoppers,  leafminers, thrips (suppression), mealybugs, and whiteflies


Aphids, fungus gnat larvae, leafhoppers, leafminers, thrips (suppression), and  whiteflies

Many vegetables (see label)


Vegetable bedding plants intended for resale only.

 


Vegetable bedding plants intended for resale only.

 See label for information on plant safety. Treat a small number of plants before treating entire greenhouse.


 

Insecticidal soap

Potassium salts of fatty acids

(M-Pede)

12 hr. REI

(Revoke)

12 hr. REI

Aphids, mites, thrips, whiteflies, broad mites, leafhoppers and others

Many vegetables including bulb, cole, leafy, fruiting and cucurbit types

Works by contact. Good coverage is needed.  Avoid treatment when plants are stressed. Certain species of cultivars may be sensitive. Spot treat first. When used with hard water, a compatibility agent may be needed.

Iron phosphate

(Sluggo Snail and Slug Bait) 0 hr. REI

Slugs and snails

Many vegetables including broccoli, cabbage, cantaloupe, cauliflower, cucumbers, eggplants, lettuce, onions, peppers, squash, and tomatoes

Ingestion causes the slugs and snails to cease feeding, become less mobile and begin to die in 3 to 6 days.

Malathion

(Malathion 5 EC)

12 hr. REI

Aphids, cabbage loopers,  leafminers, spider mites, thrips, whiteflies and others depending upon the crop (See label)

Cucumbers, eggplant, lettuce, peppers, tomatoes and others 

 

Apply to give complete coverage.

Parasitic nematodes

(Scanmask, Entonem, NemaShield)

Fungus gnat larvae

Greenhouse vegetables

Spray on soil surface and then water in. Apply to moist growing media at temperatures between 50-85 F. Remove screens and filters from the sprayer.

Pyrethrins

(PyGanic EC)

12 hr. REI

Many including aphids, caterpillars, fungus gnat adults, thrips, leafhoppers, whiteflies and others

Many vegetables including bulb, leafy, cole, fruiting and curcurbit types

Flushes insects from hiding with knockdown effects.

Pyrethrins plus PBO (piperonyl butoxide)

(Pyrethrum TR aerosol)

12 hr. REI


 

(Pyreth-It)

(Pyreth-It Formula 2)

12 hr. REI

 


 

(Pyrenone Crop Spray)

12 hr. REI

 

Aphids, cabbage worms, adult fungus gnats, mealybugs, mites, thrips, whiteflies and others

 


 

Aphids, caterpillars, leafhoppers, beetles, thrips, leafrollers, whiteflies and others.

 

 


 

Aphids, caterpillars, adult fungus gnats, leafhoppers, thrips, whiteflies and others

Many vegetables including bulb, leafy, cole, fruiting and cucurbit types

 

 


 

Many different vegetable crops (see label)

 

 


 

 Many different vegetable crops (see label)

See label for specific directions for placement and use for successful application.

 

 


 

May be combined with other insecticides.

 

 

 


 

Pyrethins and rotenone

(Pyrellin E.C)

12 hr. REI

Aphids, cabbageworms, leafhoppers, leafminers, mites, leafrollers, plant bugs, thrips and whiteflies

Many different vegetable crops (see label)

May be combined with other insecticides.

Pyriproxyfen

(Distance Insect Growth Regulator)

12 hr. REI

Whiteflies (greenhouse, silverleaf, & sweetpotato), aphids (suppression)

fungus gnat larvae, shore fly larvae (apply as heavy spray (sprench) or drench)

See supplemental label for use on indoor-grown fruiting vegetables.

Do not apply to tomato varieties less than one inch in diameter or to non-bell peppers. 

See label for specific use instructions on rates and plant safety for use as a drench or sprench against fungus gnats or shore flies.  Do not make more than 2 applications per season.

Soybean Oil

(Golden Pest Spray Oil)

4 hr. REI

 

Aphids, mites, leafminers, certain caterpillars, whiteflies, thrips and others

Vegetables such as cabbage, cauliflower, curcurbits, lettuce, melon, peppers, squash and tomatoes 

See label for information on plant safety.

 

Table 2. Selected fungicides, bactericides and biological fungicides labeled for vegetable bedding plants. 

Fungicide

Targeted Pest

Labeled Crops

Comments

Basic Copper Sulfate

(Cuprofix Ultra 40 Disperss)

12 hr. REI

Many diseases including angular leaf spot, downy mildew, Alternaria blight, anthracnose, bacterial blight, bacterial spot (depending upon the crop)

Many including cucumbers, eggplant, peppers, tomatoes, and others

Crops grown in the greenhouse may be more sensitive to copper injury so the user should determine plant sensitivity. Observe for 7 to 10 days for symptoms of injury.

Bacillus subtillus, QST

713 Strain

(Serenade)

4 hr. REI

 


(Rhapsody)

4 hr. REI

 

Many diseases including downy mildew, powdery mildew, bacterial spot, early blight

 

 

 


Many diseases including downy mildew, powdery mildew, Botrytis blight, bacterial spot, and others

Many vegetables including broccoli, leafy vegetables, cucurbits, peppers, tomatoes and others.


Many greenhouse vegetables including broccoli, curcurbits, leafy vegetables (except Brassica), peppers and tomatoes.

Preventative biofungicide. Thorough coverage essential.

 

 


Preventative biofungicide.  Thorough coverage essential.

Copper Hydroxide

(Champ DP Dry Prill, Champ Formula 2 Flowable, Champion WP, Kocide 101, Kocide 2000, Kocide 4.5LF, Kocide DF)

24 hr. REI

Leaf spots, Anthracnose, Bacterial spots and other diseases (see label)

See labels for specific crops.

See labels for specific usage instructions.

Cottonseed oil, corn oil, garlic extract

Mildew Cure (formerly GC-3)

Powdery mildew

Many greenhouse vegetables

As will any oil, applications should be proceeded by a phytotoxicity check to ensure that the material is safe for that particular plant variety.

Cuprous oxide

(Nordox 75 WG)

24 hr. REI

Downy mildew, Anthracnose, Phomopsis, Botrytis, leaf spots

Tomatoes, peppers, eggplant

 

Dichloran

(Botran 75-W)

12 hr. REI

Botrytis, White Mold (Sclerotinia)

Cucumbers, leaf lettuce, and tomatoes

Seedlings or newly set transplants of tomatoes may be injured by drenching.

Fenhexamid

(Decree 50WDG)

12 hr. REI

Botrytis

Suppression of Powdery Mildew

Tomatoes, cucumber  and leafy greens (except spinach)

Thorough coverage needed. Do not make more than two consective applications. Do not apply in the field.

Harpin protein

(Messenger STS)

4 hr. REI

Activates plant growth and defense systems.

Curcurbits, fruiting vegetables, and leafy and cole crops

Preventative biofungicide. Must be applied at least 5 to 7 days prior to expected disease or pest infestation. Do not use chlorinated water when mixing this product. Activates natural defense mechanism in plants. Has no direct effect on pests or pathogens.

Horticultural oil

Paraffinic Oil

(Ultra-Fine Oil)

4 hr. REI


(Saf-T-Side

Spray Oil Emulsion Fungicide, Insecticide and Miticide)

12 hr. REI

Powdery mildew

Cucurbits, melons & squash and others

Contact fungicide. Application should be made when disease is first noticed. See label for information on plant safety. Use lower label rates in the greenhouse. Applications should be proceeded by a phytotoxicity check to ensure that the material is safe.

Hydrogen dioxide

(Oxidate, ZeroTol)

0 hr. REI

 

Anthracnose, downy mildew, powdery mildew, Pythium root rot

Oxidate: Tomatoes, peppers, leafy and cole crops, cucurbits and others

Strong oxidizing agent. Contact, oxidizing sanitizer.

Kaolin

(Surround WP)

4 hr. REI

Powdery mildew

All crops

Forms a mineral-based particle film resulting in a dry, white film. May be unsightly for retail sales. Uniform coverage important for effectiveness.

Mancozeb

(Dithane F45, DF)

24 hr. REI

Leafspot diseases, seed treatment for damping off, seed rots and seedling blights, and downy mildew

Tomatoes, cucumbers, melons, summer squash and others

Broad-spectrum protectant fungicide.

Maneb

(Maneb 75 DF, Maneb 8WP, Manex)

24 hr. REI

Anthracnose, leaf spots, early blight, late blight

Greenhouse tomatoes

Protectant fungicide.

Pentachloronitrobenzene PCNB

(Terraclor 75 WP,  Terraclor 15G, Terraclor 400 Flowable, Turfcide 10% Granular)

12 hr. REI

Root and stem rot, damping off (Rhizoctonia solani)

Vegetable bedding plants: limited to container-grown broccoli, Brussels sprouts, cabbage, cauliflower, peppers and tomatoes

 

Protectant fungicide.

400 Flowable and 75WP: Apply as a soil drench.

15G and Turfcide: Used as growing media mix. See label for additional information.

Potassium bicarbonate

(EcoMate Armicarb “O” )

(Kaligreen)

4 hr. REI

(Milstop)

1 hr. REI

 

Powdery mildew and others

Many vegetables including cabbage, cucumber, eggplant, broccoli, cauliflower, lettuce, peppers, tomatoes and squash

Contact fungicide. Through coverage essential. Potassium bicarbonate disrupts the potassium ion balance in the fungus cell, causing the cell walls to collapse.

Propamocarb HCl

(Previcur Flex)

12 hr. REI

Pythium,Phytophthora

Tomatoes, cucurbits, peppers, leaf lettuce

For prevention of root rot and damping-off.

Pyrimethanil

(Scala SC)

12 hr.  REI

Botrytis

Tomatoes

Phytotoxicity may occur in unventilated greenhouses with relative humidity above 80%.

Rosemary oil

(Sporan, Phyta-Guard EC)

EPA exempt

Botrytis, powdery mildew, Phytophthora

Many greenhouse vegetables

As with any oil, applications should be proceeded by a phytotoxicity check to ensure that the material is safe.

Streptomyces griseoviridis strain K 61

(Mycostop, Mycostop Mix)

4 hr. REI

Fusarium, Alternaria, Phomopsis

Suppression of Botrytis, and root rots of Pythium, Phytophthora and Rhizoctonia

Many including lettuce, cole crops, cucumbers, melons, peppers, tomatoes and others

Preventative biofungicide. Contains a beneficial bacterium. Repeat applications may be needed. Use as a soil spray or drench.

Streptomycin lydicus

(Actinovate SP)

1 hr. REI

Suppression of Downy mildew, powdery mildew, Botrytis,Pythium, Phytophthora, and Rhizoctonia

All greenhouse vegetables

Preventative biofungicide that suppresses diseases.

Streptomycin sulfate

(Agri-mycin 17)

12 hr. REI

Bacterial Spot

Tomatoes and peppers

Repeated applications can result in resistant bacteria. Do not apply through any irrigation system.

Sulfur

(Microthiol Disperss)

(Micro Sulf)

24 hr. REI

Powdery mildew

 

Micro Sulf – powdery mildew, rust, Septoria leaf spot

Microthiol Disperss: Crucifers, cucurbits, peppers and tomatoes

Micro Sulf: Many including cole crops, cucumbers, eggplants, greens, peppers, tomatoes

 

Crops grown in greenhouses may be more sensitive to sulfur injury, so the lowest label right should be tried initially. Do not use within two weeks of an oil spray treatment.

Trichoderma harzianum

(PlantShield HC)

0 hr. REI

 

(RootShield Granules)

0 hr. REI

PlantShield HC: Sup