>> you had to have people out there with handtools brain chemicals. >> reporter: now, artificial intelligence recognizes what to weed and that's it away. it replaces 75 people. there is a heavy lifting robot called burro grande . >> you can move it from place to place. >> reporter: does this cut down on the amount of people you need in a field? >> definitely can. >> if you want to see a robot arm harvesting strawberries, we have one over here. >> reporter: frazier uses a silicon brain and inflated silicone hands to mimic the way humans pick berries right now. we will get back to frazier in a second, but how is all of this changing life on the farm? >> i am originally from mexicali. >> reporter: he worked his way from mexico, to marine corps,

to manager of a large farm. >> i think we can use machinery and still take care of our people that are willing to learn and willing to do better for themselves and their families. >> reporter: he has been working the fields of central california for 36 years. he has just become a u.s. citizen, and this is his first time seeing a strawberry picking robot. >> translator: you are right, technology has advanced, but it is going so fast it is going to ruin the strawberries. >> translator: if i am replaced or something like that, i will have a hardship helping my family. >> reporter: lulu cardenas came to mexico -- came here from mexico to pick fruit here. industry experts say she may end up programming or running the robots. >> reporter: do you think this is something you could do? >> of course i could do it. i would need proper training, because i don't know what the new technology is nowadays.

>> translator: the farmers benefit from it, but it is taking work from us. >> translator: it is. even for somebody like me with a work permit. >> reporter: obviously, there is a part of the story we haven't talked about yet. the national immigration forms is 48% of farmworkers in this country are undocumented. if their jobs change in a drastic way, those folks may be unlikely to apply for the kind of ai associated government assistance that the labor department could have in the near future. >> just like i did, most of us were looking for the american dream. i think that is something that will keep happening, no matter what. >> reporter: this is also new. this one flies around, detecting bad apples and picking the good ones. it's almost human, just not quite. there is something to that. >> translator: you cannot replace human heat with a cold machine. >> reporter: dave malkoff, cbs news, to lari, california.

>> according to the california department of food and agriculture, over one third of the country's vegetables, and nearly 3/4 of the countries fruits and nuts are grown right here in california. trader joe's has issued a recall on cashews because of possible salmonella contamination. this comes after that tested positive for that bacteria. the recall impacted 50% less sodium roasted and salted cashews. you can return the product for a full refund. chance sisco city hall, earlier today, maryland inbreed celebrated women's history month. the mayor on her five local women that she says have fought for the equity in this city. >> because of their commitment and advocacy has transformed the lives of so many. >> reporter: the mayor also says 58% of san francisco's department heads are women as well as 45% of the city's workforce. billionaire mckenzie scott is giving away more money, this

time, to a member of bay area foundations. the wife of former amazon founder , jeff basis, is one of the billionaires signing the giving pledge . today, bay area foundations are receiving a one million-dollar gift from scott yield giving foundation. rael has been serving local families since the 1960s. open house, a separate cisco nonprofit that serves lgbtq older adults also received $2 million, and are also on the list , oakland-based organization community united, and the hackley hood organization, focused on criminal justice and helping use of color back into the tech industry. coming up tonight at 5:00, it is a statistical tie. the nailbiting race to get into the runoff to represent the bay area in congress. five states have primaries today. what the results could mean for the presidential election, november.

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nailbiter in the race to see who will compete in november to replace congresswoman anna eshoo. sam accardo securing the top spot, but joe samiti a and evan low are still neck and neck. each with just 60% of the vote. we will continue to follow updates. presumptive gop nominee, donald trump , is expected to easily win his party's primary in five states today, including florida , where the former president cast his own ballot. this comes as president biden is also expect to sweep the contest on his side. >> reporter: presumptive gop presidential nominee, donald trump, cast his vote in the florida primary. >> our country is going downhill very fast. >> reporter: five states held contests on tuesday, teeing up the expected biden and trump rematch in november. letters say their candidate is the right pick for america. >> i believe donald trump is the only one who is willing to stand up for the constitution

as it was written. >> joe biden. i think he is the only candidate that offers us freedom, democracy, and freedom for everybody. >> reporter: trump is experiencing a serious cash crunch from both his legal battles and his election campaign. while biden is spending considerable amounts of money to reach two key groups of voters. biden's campaign has new ads this month speaking directly to black and latino voters about his economic record and other issues. the president is on a three state swing to win back support among latino voters, which recent polls have shown, is diminishing. he told volunteers in reno, nevada, that they are critical to a second term. >> i am confident that we get our message out to the american people and we will win again. here is the deal. we are the ones who will do it.

>> reporter: biden has stops planned in arizona, then goes to texas for more fundraising. coming up, you could be paying more for your easter candy, what is driving up the price of chocolate? straightahead in sports, wait until you see a seventh grade baller with the spirit of march madness. and the golden state warriors, what kind of team will they be? beyond the regular season, or

a satisfying your sweet tooth with chocolate is getting more expensive. a recent report from wells fargo found dwindling supply around the world is causing cocoa prices to skyrocket. >> the price of cocoa has doubled over the past year. part of the supply issues have to do with climate, including tree diseases brought on by heavy rainfall. coquetry farmers are also dealing with extreme wind from this year's el niño. paul, we are on the verge of the spring equinox. dancing around stonehenge with flowers in her hair . >> wow, he is. >> we can make it. >> eight hours and 23 minutes

to fly to the other hemisphere. >> i will be there filming it. >> i am sure there is something related going on around the bay area. >> hasty plans being made for the evening. 8:06 p.m. is the spring equinox, and it felt like spring away from the water today. onshore breeze kept things cool on the coast. we will be in this same pattern for the next couple of days. generally calm weather with high pressure in the atmosphere overhead. a of air has camped out, keeping the marine layer compressed, making a push into the inland valleys by early tomorrow morning. storm system over the pacific will be trying to move towards us. ran across the bay area on friday. across the markakis hotel, a short

marine layer in the distance. a 20 degrees difference between the coast and further inland. it is a far cry from the 40 degrees to 50 degrees difference that we see a few months from now, but still, a hint the seasons are changing. 53 degrees for a high temperature in half moon bay, only 60 degrees in san francisco. santa rosa is one of the cooler spots because the fog took a while to burn off. 67, further inland in san jose at 71. 76 degrees in livermore. some of the fog is going to redevelop, probably not as prevalent by early tomorrow morning, but i would still allow a few extra minutes on the way out the door. fog should leave by 9:00 or 10:00. full sunshine by the coast through the rest of the afternoon into tomorrow evening. high clouds will float through and filter that sunshine but they should not slow down the warm-up of temperatures tonight dropping down into the 40s. everybody between 41 and 49 degrees. not much variation. everyone's temperatures are close to what is average for this time of year, and then we will try to warm-up. we will successfully

warm-up inland into the low 70s and santa clara valley, 73 in morgan hill, one of the warm spots across the bay area. temperatures inland in the east bay reaching into the low 70s and along the coast, half moon bay, you will have to struggle to even get close to 60 degrees. upper 60s for redwood city and fremont, low 60s for san francisco and 62 degrees. it sounds cool, but it is exactly normal for the 20th of march. temperatures in the north bay, fog making its way inland will probably have a hard time retreating out of the northbay valleys which is why your temperatures will be a couple of degrees cooler than other inland parts of the bay area. beneficial impact on the pollen count, that is the dry and mild weather. especially on thursday. the rain will wash stuff out of the atmosphere and we are down towards the lower half of the spectrum for the lower half of the weekend. it will be a challenging weekend

for outdoor plans especially on saturday. best chance of rain arrives on friday, sticks around friday night into saturday and then lower rain chances, but not zero for sunday and monday. be flexible with outdoor plans, even though it does feel like the showers will be more miss than hit in that timeframe. we are talking about a fairly normal storm system, bringing up to a half inch of rain further inland. on widespread basis, half an inch of total rainfall over the course of the next several days friday to monday. higher amounts further inland, along the coast and in the santa cruz mountains could reach 1 1/2 inches of total rain over the course of several straight days of rain chances. seven day forecast with a couple of days of dry warm weather inland. we also have cooler temperatures , even only the low 60s for high temperatures saturday, sunday, and monday. closer to 78 degrees below normal. close to what is normal this time of year, also cooling down to

around 60 degrees as the wet weather settles in for friday and saturday. we are back into our weekend rain chances pattern that we managed to snap last weekend for that was pleasant, but the trend is now over with the rain for the first half of the weekend. as i said, and will continue to say over the course of the next several days, be flexible with outdoor plans. it is only tuesday. we have plenty of time to keep you updated on the timing of those rain chances as we get closer to the first weekend of spring. >> thanks, paul. checking what is ahead at 6:00, switching over to juliette. >> thanks so much. even proven technology that saves lives, we are getting new details on this plan to put up dozens of speed cameras on san francisco street. where they are going, how they will work, and why advocates say it is about time. plus, a clash between the past and future of a historic downtown san jose park. y plans to transform it into an entertainment destination were just dealt a major setback. those stories and more in about 10 minutes. vern has all the sports for us. hi. >> that's right, julia. nba up top and the warriors had the

day off. that is a day to think about and process last night lost to the next. is ninth or 10th in the conference as good as it will get? golden state fell behind early last night, in 81- 119-112 lost . right now, 10th. for games from a coveted six spot. they have memphis tomorrow and they cannot fool around. they are just three games from falling out of the series. >> a week or two ago, 60 was the motivation. right now i think it's less about where you're at, honestly. who cares what seed you are if we can play like we did tonight. whatever it is, it doesn't matter, you're not going to get very far. >> college basketball, march madness, two bay area teams are in it. the stanford women's festival team opens up on friday . for more on the

cardinals senior leaders , here is met lightly. >> reporter: as the stanford basketball team prepares for the ncaa tournament, it is ending the career for a long time cardinal who could not imagine this ride. >> it has been my dream to play here. i contacted them like this is it. >> reporter: hannah jumped still remembers getting the recruiting call from stanford when she was still at the pinewood school in los altos. >> when i was offered it it, it was a dream come true. you know, i probably didn't do as much in school as i should have. >> i remember getting a call from a close friend of mine who is a basketball coach, and said hey, i am a seventh grader. and i was like really? a seventh grader? and she said, yes. she is an amazing shooter. that was hannah. >> after five years in cardinal red, she clearly made the right choice. >> reporter: palo alto was a national champ, owner of the most wins in history, and the

recordholder for points made in the program. >> she stands on top of the three-point pedestal. >> for me, knowing any game could be my last, it is crazy to think of how long i have spent here and how many games i have played with stanford on my chest. >> to see how much she has improved, her growth, her maturation, the incredible leader that she is , hannah loves the stanford maybe as much as i do. >> to go out a champion and win a second ring would be the ultimate end to a storied career. >> i think it would be a picture-perfect ending. we have been working for this since our season ended last year. maybe one day we will talk about this day guy. williams id., he made 11 threes in this game, scored 38, and a 64-40 playoff win over san ansell. he was in the zone. and i can only hope that my virginia

cavaliers shoot like that in an ncaa game against colorado state of the top of the hour. >> seventh grade? >> seventh grade. >> he's got some range. >> i was listening to his dad saying, as soon as it left it in his hands, he would say okay, that's in. and it was. >> he has a future. >> no kidding. still had a 5:00, an artist in san jose using his brushes to get back. because inspired by a friend, and how you can help.

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turning his art to support women with breast cancer. >> reporter: true is a san jose landscaper. for most of his life he has mowed lawns, trimmed bushes, and designed outdoor landscapes for his clients. but, since the age of six, he has had a passion for painting. in the evenings, when the landscaping tools are put away, he comes into his own studio, and takes up the brush and the canvas. >> the line, the art, i wait for cuts. >> he fled his native vietnam and survived a dangerous boat trip to hong kong. he arrived in the u.s., penniless. he took up landscaping, married, raised four children, and never

gave up his art. his paintings now philip books, and some of his paintings sell for thousands of dollars, which he often gives back to the community. he has held shows that benefited ukraine, florida hurricane victims, and wildfire survivors, all causes he identifies with. but, his latest show and fundraiser was inspired by the suffering of just one person. they share the same hometown in vietnam. they fled separately but found each other by coincidence in san jose and formed a friendship. kathy is a breast cancer survivor, and during years of treatments. her younger sister died from the disease. >> had a mammogram, and found out just six months that i have breast cancer.

>> reporter: although breast cancer rates are declining in white, non-hispanic american women, they are increasing in vietnamese-american women who were also behind the national average when it comes to breast cancer screening. >> it is all about engaging the community, to improve prevention. >> reporter: his upcoming show in april will benefit the valley health foundation's efforts to increase screenings incentive accounting and upgraded technology. >> if we can prevent cancer, that makes the biggest impact. >> when the people with cancer feel better , less hurt , i think that feels very good, too. >> reporter: his contribution may be a small piece of a larger effort, but he says he wants to give back to the country and community which took him in when he had nothing. >> unlucky. i'm still alive, and i have come to the freedom country, and i have a good family right now. i can take

care of my family, and i can do something to help people. >> reporter: artist draw sources from many inspirations. he says his inspiration comes from because of helping people. >> beautiful works there. his art has raised thousands of dollars for the causes he supports. >> that is it for the news at 5:00. cbs news bay area with juliette goodrich starts now. it is a proven technology in saving lives. speed cameras are coming to bay area streets and we get a closer look at what, exactly they will work. >> we are scared of cars. a new incentive for drivers to slow down. advocates who fought for years explain how speed cameras are a critical edition two sentences go streets. >> everybody slows down, it

would be safer for everyone. burglars ram their way into a bay area smokeshop. >> it was like fun and games to them. >> the robbery that ended in a chase with deadly results for an innocent driver. >> you know, he was heading home from work and it ended for him out of nowhere. >> a clash for the past and the future of the downtown park in san jose. why plans to turn it into an entertainment destination has had a major setback. >> it is destroying the historical district and that is a problem . >> we are coming the neighborhood better, not coming into destroy anybody's historic footprint. the message, slow down. we are learning more about the plan to add dozens of speed cameras to some of sentences goes most