MS-13 gang members are primarily involved in violent criminal activities and are not known to engage in agricultural labor such as picking blueberries in midsummer.
Im fairly certain MS-13 gang members aren’t picking blueberries in a field midsummer.

FactVerify
Source: factverify.com
Key Evidence
Multiple official sources from the U.S. Department of Justice document MS-13 members pleading guilty to serious crimes such as murder and racketeering.
justice.govjustice.govEastern District of New York - Three High-Ranking MS-13 Gang Members Plead... There is no mention or evidence of involvement in agricultural labor or similar activities in any credible reports or profiles on MS-13.
en.wikipedia.orgen.wikipedia.orgMS-13
bbc.combbc.comMS-13 gang: The story behind one of the world's most brutal street gangs
What the Evidence Shows
The claim implies that MS-13 gang members do not participate in typical seasonal agricultural work like blueberry picking. MS-13 is a well-documented international criminal gang involved in violent crimes including murder, racketeering, and drug trafficking.justice.govjustice.govEastern District of New York - Three High-Ranking MS-13 Gang Members Plead... There is no credible evidence or reports indicating that MS-13 members engage in farm labor or agricultural work.
Their activities are centered around organized crime rather than legitimate employment. The claim uses a rhetorical device to highlight the incongruity of associating gang members with such labor, which aligns with the factual understanding of the gang's operations. While it is theoretically possible for any individual to work in agriculture, the organized nature and criminal focus of MS-13 make it highly unlikely that members would be found picking blueberries in a field during midsummer.
This claim is therefore mostly true as it accurately reflects the known behavior and activities of MS-13 members, though it is somewhat informal and anecdotal rather than a formal statement of fact.