Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO ADVANTAGE AGGRESSIVE ALLOCATION FUND

WELLS FARGO ADVANTAGE ASSET ALLOCATION FUND

WELLS FARGO ADVANTAGE CONSERVATIVE ALLOCATION FUND

WELLS FARGO ADVANTAGE GROWTH BALANCED FUND

WELLS FARGO ADVANTAGE MODERATE BALANCED FUND

Supplement dated October 1, 2008, to the Statement of Additional Information dated February 1, 2008, as previously supplemented on April 1, 2008, July 18, 2008, and August 1, 2008.

This supplement contains important information about the Funds referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 57 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.

Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO ADVANTAGE DOW JONES TARGET TODAY FUND

WELLS FARGO ADVANTAGE DOW JONES TARGET 2010 FUND

WELLS FARGO ADVANTAGE DOW JONES TARGET 2015 FUND

WELLS FARGO ADVANTAGE DOW JONES TARGET 2020 FUND

WELLS FARGO ADVANTAGE DOW JONES TARGET 2025 FUND

WELLS FARGO ADVANTAGE DOW JONES TARGET 2030 FUND

WELLS FARGO ADVANTAGE DOW JONES TARGET 2035 FUND

WELLS FARGO ADVANTAGE DOW JONES TARGET 2040 FUND

WELLS FARGO ADVANTAGE DOW JONES TARGET 2045 FUND

WELLS FARGO ADVANTAGE DOW JONES TARGET 2050 FUND

Supplement dated October, 1, 2008, to the Statement of Additional Information dated

July 1, 2008, as previously supplemented on August 1, 2008.

This supplement contains important information about the Funds referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 53 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.

Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO ADVANTAGE C&B LARGE CAP VALUE FUND

WELLS FARGO ADVANTAGE DIVERSIFIED EQUITY FUND

WELLS FARGO ADVANTAGE DIVERSIFIED SMALL CAP FUND

WELLS FARGO ADVANTAGE EMERGING GROWTH FUND

WELLS FARGO ADVANTAGE EQUITY INCOME FUND

WELLS FARGO ADVANTAGE EQUITY VALUE FUND

WELLS FARGO ADVANTAGE GROWTH EQUITY FUND

WELLS FARGO ADVANTAGE INDEX FUND

WELLS FARGO ADVANTAGE LARGE CAP APPRECIATION FUND

WELLS FARGO ADVANTAGE LARGE COMPANY GROWTH FUND

WELLS FARGO ADVANTAGE SMALL COMPANY GROWTH FUND

WELLS FARGO ADVANTAGE SMALL COMPANY VALUE FUND

WELLS FARGO ADVANTAGE STRATEGIC SMALL CAP VALUE FUND

Supplement dated October, 1, 2008, to the Statement of Additional Information dated

June 20, 2008, as previously supplemented on August 1, 2008.

This supplement contains important information about the Funds referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 57 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.

Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO ADVANTAGE ASIA PACIFIC FUND

WELLS FARGO ADVANTAGE EMERGING MARKETS EQUITY FUND

WELLS FARGO ADVANTAGE INTERNATIONAL CORE FUND

WELLS FARGO ADVANTAGE INTERNATIONAL EQUITY FUND

WELLS FARGO ADVANTAGE INTERNATIONAL VALUE FUND

Supplement dated October, 1, 2008, to the Statement of Additional Information dated

April, 1, 2008, as previously supplemented on July, 18, 2008, and August 1, 2008.

This supplement contains important information about the Funds referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 50 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.

Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO ADVANTAGE C&B LARGE CAP VALUE FUND

WELLS FARGO ADVANTAGE CAPITAL GROWTH FUND

WELLS FARGO ADVANTAGE ENDEAVOR SELECT FUND^SM

WELLS FARGO ADVANTAGE GROWTH FUND

WELLS FARGO ADVANTAGE INDEX FUND

WELLS FARGO ADVANTAGE LARGE CAP GROWTH FUND

WELLS FARGO ADVANTAGE LARGE COMPANY CORE FUND

WELLS FARGO ADVANTAGE LARGE COMPANY VALUE FUND

WELLS FARGO ADVANTAGE U.S. VALUE FUND

Supplement dated October 1, 2008, to the Statement of Additional Information dated

June 20, 2008, as previously supplemented on July 18, 2008, and August 1, 2008.

This supplement contains important information about the Funds referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 55 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.

Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO ADVANTAGE CALIFORNIA TAX-FREE MONEY MARKET FUND

WELLS FARGO ADVANTAGE CALIFORNIA TAX-FREE MONEY MARKET TRUST

WELLS FARGO ADVANTAGE CASH INVESTMENT MONEY MARKET FUND

WELLS FARGO ADVANTAGE GOVERNMENT MONEY MARKET FUND

WELLS FARGO ADVANTAGE HERITAGE MONEY MARKET FUND^SM

WELLS FARGO ADVANTAGE MINNESOTA MONEY MARKET FUND

WELLS FARGO ADVANTAGE MONEY MARKET FUND

WELLS FARGO ADVANTAGE MONEY MARKET TRUST

WELLS FARGO ADVANTAGE MUNICIPAL MONEY MARKET FUND

WELLS FARGO ADVANTAGE NATIONAL TAX-FREE MONEY MARKET FUND

WELLS FARGO ADVANTAGE NATIONAL TAX-FREE MONEY MARKET TRUST

WELLS FARGO ADVANTAGE OVERLAND EXPRESS SWEEP FUND^SM

WELLS FARGO ADVANTAGE PRIME INVESTMENT MONEY MARKET FUND

WELLS FARGO ADVANTAGE TREASURY PLUS MONEY MARKET FUND

WELLS FARGO ADVANTAGE 100% TREASURY MONEY MARKET FUND

Supplement dated October, 1, 2008, to the Statement of Additional Information dated

July, 1, 2008, as previously supplemented on August 1, 2008.

This supplement contains important information about the Funds and Trusts referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 48 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.

Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO ADVANTAGE CALIFORNIA LIMITED-TERM TAX-FREE FUND

WELLS FARGO ADVANTAGE CALIFORNIA TAX-FREE FUND

WELLS FARGO ADVANTAGE COLORADO TAX-FREE FUND

WELLS FARGO ADVANTAGE INTERMEDIATE TAX-FREE FUND

WELLS FARGO ADVANTAGE MINNESOTA TAX-FREE FUND

WELLS FARGO ADVANTAGE MUNICIPAL BOND FUND

WELLS FARGO ADVANTAGE SHORT-TERM MUNICIPAL BOND FUND

WELLS FARGO ADVANTAGE ULTRA SHORT-TERM MUNICIPAL INCOME FUND

WELLS FARGO ADVANTAGE WISCONSIN TAX-FREE FUND

Supplement dated October, 1, 2008, to the Statement of Additional Information dated

June, 20, 2008, as previously supplemented on July 18, 2008, and August 1, 2008.

This supplement contains important information about the Funds referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 69 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.

Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO COREBUILDER SHARES^SM - SERIES G

Supplement dated October, 1, 2008, to the Statement of Additional Information dated

April 15, 2008, as previously supplemented on August 1, 2008.

This supplement contains important information about the Fund referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 36 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.

Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO COREBUILDER SHARES^SM - SERIES M

Supplement dated October, 1, 2008, to the Statement of Additional Information dated

April 15, 2008, as previously supplemented on May 9, 2008 and August 1, 2008.

This supplement contains important information about the Fund referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 31 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.

Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO ADVANTAGE C&B MID CAP VALUE FUND

WELLS FARGO ADVANTAGE COMMON STOCK FUND

WELLS FARGO ADVANTAGE DISCOVERY FUND^SM

WELLS FARGO ADVANTAGE ENTERPRISE FUND^SM

WELLS FARGO ADVANTAGE MID CAP DISCIPLINED FUND

WELLS FARGO ADVANTAGE MID CAP GROWTH FUND

WELLS FARGO ADVANTAGE OPPORTUNITY FUND^SM

WELLS FARGO ADVANTAGE SMALL CAP DISCIPLINED FUND

WELLS FARGO ADVANTAGE SMALL CAP GROWTH FUND

WELLS FARGO ADVANTAGE SMALL CAP OPPORTUNITIES FUND

WELLS FARGO ADVANTAGE SMALL CAP VALUE FUND

WELLS FARGO ADVANTAGE SMALL/MID CAP VALUE FUND

Supplement dated October, 1, 2008, to the Statement of Additional Information dated

June 20, 2008, as previously supplemented on August 1, 2008.

This supplement contains important information about the Funds referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 53 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.

Please file this Statement of Additional Information Supplement with your records.

WELLS FARGO FUNDS TRUST

WELLS FARGO ADVANTAGE SPECIALIZED FINANCIAL SERVICES FUND

WELLS FARGO ADVANTAGE SPECIALIZED TECHNOLOGY FUND

Supplement dated October, 1, 2008, to the Statement of Additional Information dated

June 20, 2008, as previously supplemented on August 1, 2008.

This supplement contains important information about the Funds referenced above.

Effective immediately, the following sentences are added at the end of the fourth paragraph under the “Proxy Voting Policies and Procedures” section beginning on page 41 of the Statement of Additional Information:

However, proxies for securities held by the Social Sustainability Fund related to social and environmental proposals will be voted pursuant to Institutional Shareholder Services’ then current SRI Proxy Voting Guidelines. Accordingly, the Social Sustainability Fund may vote its proxies related to social and environmental proposals differently than the other Wells Fargo Advantage Funds.