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Strawberry and Raspberry Pest Management in Wisconsin

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Table 6. Spray schedule for strawberries—BEARING BEDS (cont<strong>in</strong>ued)<br />

When to spray Problem Treatment Formulation Rate/acre Remarks<br />

DURING HARVEST Diseases<br />

anthracnose<br />

gray mold<br />

Insects<br />

mosquitoes<br />

AFTER HARVEST Diseases<br />

(2 weeks after harvest or as<br />

often as needed)<br />

Any of the fungicides listed for<br />

Early Bloom.<br />

If fungicides were applied dur<strong>in</strong>g bloom, additional<br />

applications for gray mold should not be necessary<br />

at this time unless warm, wet/humid weather<br />

occurs.<br />

Do not exceed four applications of azoxystrob<strong>in</strong> or<br />

5 applications of pyraclostrob<strong>in</strong> per year. Do not apply<br />

more than 56 oz/a of Switch per year.<br />

Check table 2 on page 4 for preharvest <strong>in</strong>tervals.<br />

no material registered To control mosquitoes dur<strong>in</strong>g harvest, use pyrethr<strong>in</strong>.<br />

Follow manufacturer’s directions.<br />

sap beetles acetamiprid 30 SG 4.0-6.9 oz<br />

70 WP 1.7-3.0 oz<br />

leaf diseases:<br />

angular leaf spot<br />

leaf blight<br />

leaf scorch<br />

leaf spot<br />

Any of the fungicides listed for<br />

leaf diseases dur<strong>in</strong>g Early Bloom.<br />

red stele fosetyl-alum<strong>in</strong>um 80WDG 2.5–5.0 lb<br />

mefenoxam Gold EC 1.0 pt<br />

phosphorous acid rates vary<br />

Insects<br />

aphids<br />

spittlebugs<br />

whiteflies<br />

aphids<br />

strawberry leafroller<br />

acetamiprid 30 SG 1.9-6.9 oz<br />

70 WP 0.8-3.0 oz<br />

Provado 1.6F 3.75 fl oz<br />

*bifenthr<strong>in</strong> WSB 6.4–32.0 oz<br />

carbaryl 80S 1.5–2.5 lb<br />

50WP 2.0–4.0 lb<br />

4F, XLR 1.0–2.0 qt<br />

*diaz<strong>in</strong>on 4E 1.5–2.0 pt<br />

50WP 1.5–2.0 lb<br />

endosulfan 50WP 2.0 lb<br />

3EC 1.3 qt<br />

malathion 25WP 6.0–8.0 lb<br />

8EC, 8F 1.5–2.0 pt<br />

cyclamen mite endosulfan 50WP 4.0 lb<br />

3EC 2.66 qt<br />

spider mite *abamect<strong>in</strong> 0.15EC 16.0 fl oz<br />

*bifenthr<strong>in</strong> WSB 16.0–32.0 oz<br />

fenbutat<strong>in</strong> oxide 50WP 1.5–2.0 lb<br />

*fenpropathr<strong>in</strong> 2.4EC 16–21.3 fl oz<br />

* Restricted-use pesticide—can only be applied by a certified applicator.<br />

Apply every 7–14 days. If angular leaf spot has been<br />

a problem this grow<strong>in</strong>g season, <strong>in</strong>clude a copper<br />

fungicide (see “Disease Notes”). See additional<br />

remarks for Early Spr<strong>in</strong>g or Prebloom.<br />

See remarks under Early Spr<strong>in</strong>g.<br />

Carbaryl may aggravate aphid <strong>and</strong> spider mite<br />

problems.<br />

<strong>Strawberry</strong> leafroller may also be controlled with<br />

sp<strong>in</strong>etoram at the rate of 6.0-10.0 fl oz/acre.<br />

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