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Cannabis offers cues when it’s time to harvest – along with historical data and testing

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Nic Robertson, vice president of operations in Massachusetts for 4Front Ventures, said commercial growers have moved away from eyeballing the color of trichomes and squeezing buds to gauge moisture content in favor of scientific methods to evaluate when cannabis flower has reached an optimal point for harvest.

“Over the last seven or eight years, I have been proven wrong by my aesthetic view of how mature I think that plant is at that time,” Robertson said.

“Getting those test results and showing higher levels of CBGA – the precursor to a number of other cannabinoids – than I would have expected indicates that that plant could have gone another few days or another week before it truly reaches its maximum potential.”

Today’s cannabis cultivators have more scientific approaches to decide when their crops are ready to harvest, such as rigorous data collection, frequent testing and tools such as microscopes and moisture meters.

History as a guide

“Once we first grow something, we figure out how long it takes to finish. Is it eight weeks, nine weeks, 10 weeks?” said Kevin Sparks, lead cultivator for Insa’s operations in Pennsylvania.

Knowing the window when a strain historically finishes helps cultivators plan their harvests months in advance – or even at the start of the growing year, Sparks explained.

Robertson agrees that keeping a detailed history is important, adding, “We are always learning from the crop.”

If a strain from the previous crop finished on day 58, then the strain from the ensuing crop likely will finish on or very close to day 58, assuming “everything goes to plan for the next crop,” Robertson said, “and there were no stressors that would cause the plant to finish early or cause the plant to delay and finish late.”

That’s a big “if,” however.

“Oftentimes those crops are not exactly duplicated. Certain things are out of our control,” Robertson said.

In commercial settings – especially large or medium-sized grows where production schedules require crops to be flipped five or six times per year – cultivators often must decide between the perfect and the good.

“Every harvest that we do is based on the harvest that is right before and the harvest that we’ve scheduled right afterward. So, we only have a small window of time that we can say, ‘OK, we’re going to pull these plants a little early, or we’re going to give them a few extra days without that domino effect being introduced into the rest of the schedule,” Robertson said.

“Some connoisseurs might raise their nose to this, but over time, I have noticed there’s not a massive difference in a two-day window.

“If it works better for our labor scheduling to harvest on a Friday rather than having to call 25 people in on a Saturday, I’m harvesting the room on Friday.”

 Sampling and science

For some cultivators, another important method to help decide when plants are ready to be harvested is sampling – or pinching off a small piece of flower and testing its cannabinoid profile and potency at that point in time.

Marco Malatrasi, chief cultivator at Florida-based Fluent Cannabis, uses samples to help determine the “ripening curve” for his crops and evaluate how plants in a certain crop are progressing toward harvest.

“For the ripening curve, you need quantitative measure. From your batch, you pull down one plant in week seven, eight, nine and 10, if you have it … taking samples all through the ripening process as you get closer and closer to that harvest date,” Malatrasi said.

He added that you don’t need to sample whole plants but, rather, small buds from different parts of the grow room (back, front, center, edges) and different parts of the plant (top, middle, bottom).

“I’m testing for what’s going to end up in the jar,” Malatrasi said.

He does the sampling twice a week because “big changes” to the cannabinoid profile and potency can occur in only three days – and changes are more likely as you get closer to the end of the cycle.

By testing those different samples, you can see “how they are doing chemically” Malatrasi said.

Everything that we’re looking for is in the ripening curve and finding that sweet spot of when to harvest. … If you still have a lot of CBG, a precursor to THC, you’re probably still early. If you have more-than-usual CBN, you’re running late,” Malatrasi said.

His preferred measuring instrument is high-performance liquid chromatography (HPLC), but that can be expensive. Less expensive tools exist, such as Purpl Pro, a handheld potency tester, and a tabletop potency-testing apparatus from Orange Photonics.

Using these instruments, growers can study marijuana flower’s cannabinoid profile.

“Principally, you’re looking for CBN and CBG, because one’s a precursor and one’s after the fact. That’s cueing my potential. For example, if I do a reading at week seven and I have a certain THCA percentage, that’s great, but how do I know it’s going to increase? Well, that’s where I’m looking at the CBG percentage,” Malatrasi explained.

It’s also important to look at trichome density. For that, Malatrasi likes to use a microscope and a so-called Secchi disc.

“You can use them in the field. They’re good, thorough and quick, which is important when you’re harvesting a few thousand plants per week,” Malatrasi said.

When inspecting trichomes, cultivators favor those with big, bulbous heads and – in terms of extraction purposes – those that have long stems that make them easier to knock off.

It’s also important that there be a high density of trichomes on the flower and that their color be what growers typically describe as “milky.” Too clear, and they are underripe; too milky or amber in color, and they are getting overripe.

For research and development purposes, Malatrasi often will “sacrifice” one or two plants by letting them become overripe because it tells him when “the plant starts to fall off.”

But taking samples to test before harvest might be complicated in some states because of their seed-to-sale tracking systems and compliance requirements.

“We have to track each individual plant separately, so it becomes really hard to, say, take one little chunk off the plant and then weigh that and then track the rest of it separately,” Robertson said.

“It creates this compliance risk, and it’s just a nightmare of data for us to maintain that. So, we harvest the plants full, and we dry those plants in a full-plant hang that are still individually tracked by RFID (radio frequency identification) plant tags.”

Jushi’s evaluation processes at all of its cultivation sites include “harvest walks” throughout the harvest room, bringing together leaders from the site’s cultivation and processing departments “and even maybe a manufacturing individual,” said Ryan Cook, executive vice president of operations at Jushi.

“These reports guide us … so Josh (Malman, Jushi’s head cultivator) and I can have conversations weeks in advance of any harvest and generally know where things are headed,” Cook said.

“We have our own analytical labs and our own microbial labs inside the facilities, so we have the ability to test far in advance. That allows them to gauge the potencies weeks before we’re prepared to harvest.

“We’ve got full-on harvest prediction planners, where we can see from the clones that I took this week when that plant is going to be harvested. And ideally, we’re working in a way that we say, ‘Hey, in 16 weeks, I need half of that product going to flower and half that product only to extraction,’” Cook said.

“We are able to make some adjustments at the end of cycle near harvest based on measurement, but we try to make those determinations earlier.”

 Wrapping up

While scientific measurements are a much larger part of cannabis harvesting than they used to be, the old-school tricks that once informed growers aren’t necessarily obsolete.

Whether you’re using an HPLC machine, a microscope or jeweler’s loupe to examine your plants, you are still looking for the same visual cues.

“When you know it’s done, it’s usually by trichrome production,” said Frank Golfieri, chief cultivator for Insa’s Massachusetts operations.

Flower to be used for fresh-frozen extraction is best harvested slightly on the early side, when the trichomes are clear to a little milky. Earlier means that there are more terpenes because fewer terpenes have been lost to heat.

If you harvest for flower, wait a few days longer, when the trichomes are milkier, Golfieri recommends.

All of Jushi’s cultivation facilities are equipped with digital microscopes that can take high-resolution photos of trichome size, shape, color and density.

“The age of the plant and what the trichomes look like is absolutely something we’re going to look at before we harvest,” said Malman, Jushi’s head cultivator.

“We’re looking at pistil retraction near the end of the cycle. You normally see these big, white fuzzy pistils. … As those start to get older and more mature, they will start to retract down into the calyx.

“Sometimes they change color … orange or brown. Sometimes they don’t, they just fully retract. Those are visual cues that we look for.

Jushi also watches “the color of the flower as we’re dropping that temperature near the end of the cycle. Both in a daytime and nighttime period, you start to see more purples, more anthocyanins coming out in the plant. So that’s generally a cue for us,” Malman said.

Golfieri agreed: If (the hairs) are all white, it’s still too early to cut down. You want them to be orange. And the flower should have a velvety, sticky feel. If the hairs are red and some new white ones are sprouting up, that means you’re feeding it too much nitrogen,” he said.

Off-gassing aroma also is a sign that plants are ready to be harvested.

As the end of cycle approaches, cultivators should lower flower-room temperatures “to preserve as much of that off-gassing as possible,” Malatrasi said.

“If you already have off-gassing, then it’s probably time to get the plants harvested. I want off-gassing to occur in the dry room.”

Source: https://mjbizdaily.com/cues-historical-data-and-testing-help-time-cannabis-harvest/

Business

Alleged Crores Pharma Scam Mastermind Arrested from Surat

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After evading law enforcement for nearly 13 years, an accused linked to a large-scale pharmaceutical fraud case has been arrested by Delhi Police from Surat, Gujarat. The suspect is alleged to have orchestrated a series of financial scams involving fake identities, forged documents, and dishonoured cheques used to procure high-value pharmaceutical raw materials.

Authorities say the accused, identified as Himmat Singh Lodha, is believed to have defrauded multiple pharmaceutical companies in Delhi of goods worth approximately ₹98 lakh before disappearing and remaining underground for years.

Fake Business Deals and Dishonoured Cheques Used in Fraud

Investigators claim the accused posed as a legitimate pharmaceutical trader and placed bulk orders for expensive drug ingredients, offering post-dated cheques as payment security.

In one documented case from 2013, he allegedly obtained around 550 kilograms of Gliclazide, a diabetes-related pharmaceutical ingredient, valued at over ₹26 lakh. When suppliers attempted to encash the cheques, they were reportedly returned with the remark “account closed.”

Following the transaction, the accused allegedly vacated his office and rented residence and disappeared without settling payments. He was later declared a proclaimed offender in 2016 after repeatedly failing to appear before court proceedings. Authorities had also issued a reward for information leading to his arrest.

Multiple Identities and Repeated Fraud Pattern

Police investigations further link the accused to another cheating case dating back to 2012, where he allegedly used a fake identity, “Kailash Jain,” to obtain a large consignment of Ambroxol HCL, a pharmaceutical compound used in cough medications. The value of that consignment was estimated at around ₹72 lakh.

Officials believe the accused followed a consistent modus operandi—posing as a credible businessman, securing high-value goods on deferred payment terms, and then disappearing after delivery while shutting down business operations.

Investigators suspect that forged business records, fake company credentials, and fabricated financial histories were used to build trust with suppliers and gain access to expensive raw materials.

Multi-State Surveillance Leads to Arrest in Surat

A special Crime Branch team tracked the accused through coordinated surveillance efforts across multiple cities, including Mumbai, Ahmedabad, and Surat. After nearly a month of technical monitoring and intelligence gathering, officials located and arrested him from a residential area in Surat.

Authorities also revealed that the accused had been involved in property-related activities while staying under the radar to avoid detection.

Growing Threat of Corporate Identity Fraud

The case highlights a rising trend of organised financial fraud targeting industries that rely heavily on trust-based transactions and deferred payments. Experts note that criminals increasingly exploit gaps in corporate verification systems by using fake GST registrations, temporary offices, and forged documentation to appear legitimate.

Cybercrime and financial fraud specialists warn that such schemes are becoming more complex with the widespread availability of digital business tools, making it easier to create convincing but fraudulent corporate identities.

Experts Urge Stronger Due Diligence in High-Value Transactions

Experts, including former IPS officer and cybercrime specialist Prof. Triveni Singh, emphasize the need for stricter verification procedures in commercial dealings. He noted that relying solely on paperwork or digital business profiles can expose companies to significant financial risk.

Authorities and industry experts recommend physical verification of business operations, bank account validation, and detailed background checks before engaging in high-value or deferred-payment transactions—particularly in sectors like pharmaceuticals, where single consignments can involve transactions worth crores.

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EU Pressure Builds on Google as Regulators Face Calls for Massive Fine Over Search Practices

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A growing coalition of European industry groups is intensifying pressure on regulators to take decisive action against Google over allegations of unfair search practices that could reshape competition rules across the region’s digital economy.

Investigation Under Digital Markets Act Gains Momentum

The case is being examined by the European Commission under the European Union’s landmark Digital Markets Act (DMA), introduced to curb the dominance of major technology platforms and ensure fair competition.

Launched in March 2024, the investigation focuses on whether Google has been prioritising its own services in search results, potentially disadvantaging rival businesses that rely on online visibility to reach customers.

Industry Groups Demand Swift Action

Several prominent European organizations have jointly urged regulators to conclude the probe without further delay. They argue that prolonged investigations allow alleged anti-competitive practices to continue, putting European companies—especially startups—at a disadvantage.

Signatories include the European Publishers Council, the European Magazine Media Association, the European Tech Alliance, and EU Travel Tech.

In a joint statement, these groups warned that delays in enforcement are affecting innovation, profitability, and growth prospects for regional businesses competing in digital markets.

Google Denies Allegations

Google has rejected claims of bias, stating that its search algorithms are designed to deliver the most relevant and useful results to users. The company has also proposed adjustments to address regulatory concerns.

However, critics argue that these changes are insufficient and fail to address the core issue of market dominance.

Potential Billion-Euro Penalties

If found in violation of the DMA, Google could face significant financial penalties. Under EU rules, fines can reach a substantial percentage of a company’s global turnover, potentially amounting to billions of euros.

Regulators may also impose corrective measures requiring changes to business practices, which could have long-term implications for how digital platforms operate in Europe.

Wider Implications for Big Tech

The case highlights ongoing tensions between European regulators and major U.S. technology firms. In recent years, the EU has taken a more aggressive stance in enforcing competition laws, aiming to create a level playing field for local businesses.

A final ruling against Google could set a major precedent, influencing future enforcement actions and shaping the regulatory landscape for global tech companies operating within Europe.

As scrutiny intensifies, the outcome of the investigation is expected to play a critical role in defining the future of digital competition across the European Union.

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AI & Technology

Amazon Faces Potential Criminal Trial in Italy Over €1.2 Billion Tax Evasion Allegations

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Milan: U.S. tech giant Amazon is facing the prospect of a major legal showdown in Italy, after prosecutors in Milan formally requested a court to move forward with criminal proceedings over alleged tax evasion totaling approximately ₹12,500 crore (€1.2 billion).

The case targets Amazon’s European division along with four senior executives, marking one of the most significant tax-related investigations involving a global e-commerce platform in Europe.

Trial Push Despite Multi-Million Euro Settlement

The move comes even after Amazon reached a financial settlement with Italian tax authorities in December, agreeing to pay around ₹5,500 crore (€527 million), including interest, to resolve part of the dispute.

Typically, such settlements lead to the closure of criminal investigations. However, Milan prosecutors have opted to proceed, signaling a tougher stance on alleged corporate tax violations.

A preliminary hearing is expected in the coming months, where a judge will decide whether to formally indict the company and its executives or dismiss the case.

Allegations of VAT Evasion Through Marketplace Sellers

At the center of the investigation are claims that Amazon’s platform enabled non-European Union sellers to avoid paying value-added tax (VAT) on goods sold to Italian consumers between 2019 and 2021.

Prosecutors allege that the company’s marketplace structure allowed thousands of foreign vendors—many reportedly based in China—to operate without fully disclosing their identities or tax obligations. This, authorities argue, led to substantial VAT losses for the Italian government.

Under Italian law, online platforms facilitating sales can be held partially liable if third-party sellers fail to comply with tax requirements, a key point in the prosecution’s case.

Italian Government Named as Affected Party

In their filing, prosecutors identified Italy’s Economy Ministry as the injured party, citing significant financial damage resulting from the alleged tax evasion.

Legal experts say the outcome of the case could have wide-ranging implications across the European Union, where VAT systems are harmonized and similar compliance rules apply to digital marketplaces.

Multiple Investigations Add to Pressure

The VAT probe is just one of several legal challenges facing Amazon in Italy. The European Public Prosecutor’s Office is reportedly examining additional tax-related issues covering more recent years.

Meanwhile, Milan authorities are pursuing separate investigations into alleged customs fraud linked to imports from China and whether Amazon maintained an undeclared “permanent establishment” in Italy—potentially exposing it to higher tax liabilities.

In a separate regulatory action, Italy’s data protection authority recently ordered an Amazon unit to stop using personal data from over 1,800 employees at a warehouse near Rome.

Amazon Denies Allegations

Amazon has consistently denied wrongdoing and indicated it will strongly contest the allegations in court if the case proceeds. The company has also warned that prolonged legal uncertainty could impact investor confidence and Italy’s appeal as a destination for international business.

Broader Impact on Europe’s Digital Economy

If the case moves to trial, it could become a landmark moment for the regulation of global e-commerce platforms in Europe. Governments across the region are increasingly scrutinizing how digital marketplaces handle tax compliance, especially in cross-border transactions.

With online retail continuing to expand, regulators are under mounting pressure to ensure that multinational platforms and third-party sellers adhere to the same tax rules as traditional businesses.

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